Database Users

Whatsapp notification woes driving me crazy!

So after being a long time apple user and long time iTunes hater ... I managed to sell my iphone 4 and bought a samsung galaxy S4, did the same for my other half...
Keep in mind, this is a brand new, no-root, default phone.
The issue basically is notifications, for whatsapp ( at the moment since I haven't set up anything else that requires push, besides gmail). The issue is once I turned the screen off, either manually or by itself. whatsapp notifications randomly stop arriving until I turned on the screen, completely close the app and open it again, the same goes for 2 other devices ( 3 in total), this happens with wifi or mobile data
Device #1. new s4,
Device #2 new s4
Device #3 Samsung galaxy young running 4.1.2 JB.
Now, device #3 belongs to a friend of mine who told of these issues a couple of months ago, however I did pay attention as I just figured it was network connection or wifi or whatever be it.
I've googled the hell out of this and it is apparently an android issue:
it's not telco related in my case, because i had NO ISSUES on my iphone 4 nor my best half's 4s.
Anyway, hopefully someone here has been through something similar and been able to fix it? I've searched the forums and there's apparently a widespread issue, but not fix as of 4.2.2?
New to the forum, I originally posted this here
neowin.net/forum/topic/1163306-android-notifications-woes-with-whatsapp/[/url]

emailed whatsapp support
I emailed whatsapp support, got and automated response, i'll post if I get any updates
Jul 08 13:28 (PDT)
Hi,
I just recently switched to a samsung galaxy s4 ( two actually, one for me,
one for GF), before that we used iphone 4 and 4s, never had an issue with
whatsapp notifications until I switched this passed friday. The issue is
once the phone goes into sleep mode, be it mobile data or wifi, I have to
force close the app and open again to receive notifications that I got
hours ago if I don't continously check.
I've googled the hell out of it and found your FAQ, as well as plenty other
sites with the same issue except no solution.
From your FAQ:
1. tried re-installing directly from direct download link (
http://www.whatsapp.com/android/current/WhatsApp.apk) and not from play
store
2. tried rebooting.
3. notifications are set properly
4. google+ is disabled ( hangouts) ( tried enabling it, same result)
5. Wifi is set to always on.
Note this is on stock, brand new phones and apparently it's a wide spread
issue:
http://forum.xda-developers.com/showthread.php?t=2356052
http://forum.xda-developers.com/showthread.php?t=2351753
http://www.neowin.net/forum/topic/1163306-android-notifications-woes-with-whatsapp/
Anyway, emailing you guys, because I've basically given up google searching
and asking in forums.
Click to expand...
Click to collapse
Their automated response was:
Hi,
Thanks for contacting WhatsApp. We are working on answering everyone's question as soon as possible. In the meantime, please look at our FAQ to see if your question is answered there.
FAQ page: http://www.whatsapp.com/faq/
Below are the answers to some commonly asked questions:
1. What are WhatsApp's subscription fees?
http://www.whatsapp.com/faq/en/general/23014681
2. Why can't I connect to WhatsApp?
http://www.whatsapp.com/faq/en/general/21092998
3. Can I recover deleted messages?
http://www.whatsapp.com/faq/en/general/21197296
If you submitted a suggestion, thank you very much for sharing your feedback. Please note that we cannot comment specifically about plans and developments, but we value your feedback and have taken note of your suggestion.
To add any updates to your request, please respond to this email. We are here to help!
Thanks!
WhatsApp Support Team
Interested in translating for us? Please visit http://translate.whatsapp.com
Take a look at our FAQ: http://www.whatsapp.com/faq/
Click to expand...
Click to collapse

Are you using it on Wi-Fi or 3g? If Wi-Fi, Is it possible that your Wi-Fi is going into poWer save mode or something
Sent from my GT-I9505 using Tapatalk 4 Beta

AMoosa said:
Are you using it on Wi-Fi or 3g? If Wi-Fi, Is it possible that your Wi-Fi is going into poWer save mode or something
Sent from my GT-I9505 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Sadly, both

Do you lock the screen while whatsapp is open? Or do you choose whatsapp and then lock the screen?
If whatsapp is still running and on the screen, and you lock the screen, it's like the app just stops checking.. I've had this with multiple phones and its a whatsapp problem, not the phone.

ilabs said:
Do you lock the screen while whatsapp is open? Or do you choose whatsapp and then lock the screen?
If whatsapp is still running and on the screen, and you lock the screen, it's like the app just stops checking.. I've had this with multiple phones and its a whatsapp problem, not the phone.
Click to expand...
Click to collapse
Both.
So basically your solution was leave whatsapp on screen and push lockscreen?

Draconian Guppy said:
Both.
So basically your solution was leave whatsapp on screen and push lockscreen?
Click to expand...
Click to collapse
No, the opposite. For me, whatsapp only worked and checked for msgs if i closed the app and then locked the screen. I would usually come back to the homescreen or something. But if i locked over whatsapp, it would stop checking or take a really long time.
But since you say you've done both, I'm kinda stumped.

ilabs said:
No, the opposite. For me, whatsapp only worked and checked for msgs if i closed the app and then locked the screen. I would usually come back to the homescreen or something. But if i locked over whatsapp, it would stop checking or take a really long time.
But since you say you've done both, I'm kinda stumped.
Click to expand...
Click to collapse
Well this is how i fix whatsapp after it goes coocoo, close app, then open again,

Draconian Guppy said:
Well this is how i fix whatsapp after it goes coocoo, close app, then open again,
Click to expand...
Click to collapse
Which means whatsapp is usually open when you lock the screen, am I correct?

ilabs said:
Which means whatsapp is usually open when you lock the screen, am I correct?
Click to expand...
Click to collapse
Yup

Draconian Guppy said:
Yup
Click to expand...
Click to collapse
The try backing out of whatsapp before locking the screen. That should fix your problem. Its a whatsapp issue.

ilabs said:
The try backing out of whatsapp before locking the screen. That should fix your problem. Its a whatsapp issue.
Click to expand...
Click to collapse
I have tried that as well :/
Currently trying to installing .763, updated from .762, but whatsapp servers are probably getting busted as can't even verify my number.

Bro install Whatsapp+.
Google and download the apk,install and see if it helps.
If not, the only way is to root the S4 and install push notification fixer from play store. It modifies andriod to check for msges every 5mins. That will solve your problem for sure.
Sent from my C6502 Pac Rom using XDA Premium HD app

babylordx said:
Bro install Whatsapp+.
Google and download the apk,install and see if it helps.
If not, the only way is to root the S4 and install push notification fixer from play store. It modifies andriod to check for msges every 5mins. That will solve your problem for sure.
Sent from my C6502 Pac Rom using XDA Premium HD app
Click to expand...
Click to collapse
Hey mate,
I've probably tried all apps or methods by insanity to try getting this problem fixed. Unfortunately, nothing positive turned out.
Now I'm trying to off my screen when whatsapp is open, however, I still think it's unbelievably stupid to do so even if it works to get push notification. How can I go back to whatsapp whenever i wanna put the phone back in my jeans pocket? It then seems whatsapp would become the new homescreen?!?!?
Anyone got a real solution to this???

Also having this problem. Screen off, screen on - sometimes whatsapp just doesn't want to receive/send messages. Other times it's working properly.
Have you guys disabled Samsung Push? Have you disabled any system apps at all? Also, do you have the problem even when your phone has a good signal?
I'm also trying to find out the reason for this problem.

frrlod said:
Also having this problem. Screen off, screen on - sometimes whatsapp just doesn't want to receive/send messages. Other times it's working properly.
Have you guys disabled Samsung Push? Have you disabled any system apps at all? Also, do you have the problem even when your phone has a good signal?
I'm also trying to find out the reason for this problem.
Click to expand...
Click to collapse
I do disable some system app like weather, finance and stuff like those. To me, what I can confirm is the independence of problem from the signal strength since I've been using the same service provider before upgrading to Jelly Bean and there used to be problem free with the push notification.
This is the result I got last night:
- open whatsapp -> close whatsapp -> homescreen -> screen off = no push
- open whatsapp -> close whatsapp -> free ram -> screen off = no push
- open whatsapp -> screen off = push
Conclusion:
- it is not related to free ram
- it is the problem that the andriod system turn off the app upon screen off (or sleep)
Plus.
I tried installing Push Notification Fixer to introduce "heartbeat" to maintain the connectivity, unfortunately, it DOES NOT work in my case.
Let's keep in view the development. At least we are not alone and hope either Whatsapp or Google can fix this.

Check out this thread:
http://forum.xda-developers.com/showthread.php?t=2357417
It's a thread which guides you how to disable some allegedly useless google services in order to save battery life when idle. It works, but I think it might have been what's caused my whatsapp to go crazy. I even asked in the thread and some others have the same problem.
But if most other people in this thread haven't disabled said google services, that doesn't make any sense.

Mate. Trust me i know this issue exist on all andriod. i googled the hell out of it because i quarrelled with my partner a few times due to delay in replies. its just the way the kernel is written for stock andriod. you can try everything but it wont work. your only solution is to root and install push notification fixer from play store.
Sent from my C6503 using XDA Premium HD app

This isn't an issue with android it's an issue with whatsapp. Every android phone I've ever owned has had this issue with whatsapp. Whatsapp need to update their app so it still notifies if it was the last app open whilst the screen locks.
I just press home after I reply and let it lock its second nature to me. The bug is in whatsapp where if it is the last displayed whilst screen lock notifications don't work. You could try changing the conversation tone that might help.

mox123 said:
This isn't an issue with android it's an issue with whatsapp. Every android phone I've ever owned has had this issue with whatsapp. Whatsapp need to update their app so it still notifies if it was the last app open whilst the screen locks.
I just press home after I reply and let it lock its second nature to me. The bug is in whatsapp where if it is the last displayed whilst screen lock notifications don't work. You could try changing the conversation tone that might help.
Click to expand...
Click to collapse
That's wrong... It was perfectly fine, instantly receiving whatsapp messages in my phone no matter what. Something I've changed caused it to stop working.
My problem isn't only the notifications, it's the actual whatsapp messages aswell. Something killed the Whatsapp wakelocks, now my whatsapp isn't causing any wakelocks and when the phone is idle it does not check for messages.

[Q] Delay in Opening Contacts in Note 3

Hello guys,
I'm new to the forum
I notice that there's a slight delay opening Contacts (3 seconds+) and Dialer (1 second+) in my Note 3.
However after opening it once, there's no delay opening it the second time,
unless I clear the Contacts Apps in the running apps and open it again.
I'm not sure if this happens from the fist time I unbox it; I didn't really pay attention at the time.
Maybe this happens after I turn off and uninstall updates on some of the bloatwares, but I'm not sure.
ROM is stock Samsung, everything is still stock. Just some updates to some of the stock apps.
I haven't installed any new apps yet. However, I do turn off and uninstall updates on some of the bloatware.
I've also changed the 3 settings (cant remember the names, animator or something) on the Developer Options to OFF.
And I've removed the S Voice from the Home Button too.
The Note 3 is the Exynos one. Stock Samsung.
There are about 800 contacts, all google contacts. They are also synced, together with gmail. These contacts are imported from BB 10 OS, and some have pictures from the BBM.
Does anyone else have this problem, and is there a fix for this? I've searched the forum, seems like some have this issue, but I can't find any real fix for this.
Thanks!

Sounds normal to me. It has to re-launch the app, and the app then has to re-scan all your contacts. 800 contacts is a lot to scan through, so 1-5 seconds is to be expected.

No lag here. Did you try a restart with cache wipe? Usually that solves similar problems.
Sent from my SM-N9005 using xda app-developers app

I noticed the same lag. I actually noticed it on my previous phone (SGS 3). At that time, I used GoContacts/Dialer, which I thought might be the cause of that. After removing it, same lag with the stock dialer/contacts.
Besides, I was a flash-addict, and I noticed that on every ROM I tried.
And now, even if it's a bit quicker, I still notice it on my new Note 3 (@stock/rooted). But unlike on my SGS3, it's only the first time you open dialer/contacts that it appears (as long as the system doesn't kill the process).
I wonder if it might be a good idea to force keeping that process opened.

flochy said:
I noticed the same lag. I actually noticed it on my previous phone (SGS 3). At that time, I used GoContacts/Dialer, which I thought might be the cause of that. After removing it, same lag with the stock dialer/contacts.
Besides, I was a flash-addict, and I noticed that on every ROM I tried.
And now, even if it's a bit quicker, I still notice it on my new Note 3 (@stock/rooted). But unlike on my SGS3, it's only the first time you open dialer/contacts that it appears (as long as the system doesn't kill the process).
I wonder if it might be a good idea to force keeping that process opened.
Click to expand...
Click to collapse
thanks for the replies guys.
Anyone else has the same problem on their Note 3 ?

surfol said:
thanks for the replies guys.
Anyone else has the same problem on their Note 3 ?
Click to expand...
Click to collapse
Solved. It turned out that my issue was caused by turning off Chat ON app.
I actually turned it off when I first got the phone, and now I tried to turn it back ON.
The lag is actually reduced to 1-1.5 seconds (much more acceptable than 3 seconds).
For others with the same issue, hope this helps

surfol said:
Solved. It turned out that my issue was caused by turning off Chat ON app.
I actually turned it off when I first got the phone, and now I tried to turn it back ON.
The lag is actually reduced to 1-1.5 seconds (much more acceptable than 3 seconds).
For others with the same issue, hope this helps
Click to expand...
Click to collapse
Glad to know you found resolution to your problem. Like another post suggested, when you are syncing your contacts to a device through a 3rd party application such as GMail, Exchange, Yahoo etc... The application runs an API in the background at application launch which pulls all your information onto the device. When you automatically sync, your device periodically sends a request to the server for contact details, task details, calendar details etc...
800 contacts and whatever other events you're syncing will definitely take time. If you press & hold your home button and your swiping your application out of memory and then reloading, like suggested, this is going to take a few seconds. By turning Chat On back on, this has limited the lag which is acceptable to you. This definitely is not a "problem" as I've initially stated but instead more of a communications lag between the device, your server and the API which is engaging in the communications.
Hope this helps!

surfol said:
Hello guys,
I'm new to the forum
I notice that there's a slight delay opening Contacts (3 seconds+) and Dialer (1 second+) in my Note 3.
However after opening it once, there's no delay opening it the second time,
unless I clear the Contacts Apps in the running apps and open it again.
I'm not sure if this happens from the fist time I unbox it; I didn't really pay attention at the time.
Maybe this happens after I turn off and uninstall updates on some of the bloatwares, but I'm not sure.
ROM is stock Samsung, everything is still stock. Just some updates to some of the stock apps.
I haven't installed any new apps yet. However, I do turn off and uninstall updates on some of the bloatware.
I've also changed the 3 settings (cant remember the names, animator or something) on the Developer Options to OFF.
And I've removed the S Voice from the Home Button too.
The Note 3 is the Exynos one. Stock Samsung.
There are about 800 contacts, all google contacts. They are also synced, together with gmail. These contacts are imported from BB 10 OS, and some have pictures from the BBM.
Does anyone else have this problem, and is there a fix for this? I've searched the forum, seems like some have this issue, but I can't find any real fix for this.
Thanks!
Click to expand...
Click to collapse
I noticed that the lag goes off when I disable sync. Try doing that bro, do a two two finger swipe and disable sync from the notification panel and Try launching the contacts application again

Surely if that is the workaround. Its easier to wait 3 seconds! Lol
Sent from my SM-N9005 using XDA Premium 4 mobile app

u r note is infected with ..contact virus

910F - Lollipop 'Unfortunately Contacts has stopped' repeatedly

Hi Guys,
Must say I'm loving Lollipop so far, however I have a really annoying issue - my Contacts / Phone app keeps crashing. 'Unfortunately Contacts has Stopped'. This occurs almost every other time I open the dialler. And randomly if I leave it as a background process.
I'm running the German Lollipop build, with BTU UK CSC. I'm rooted with Philz Touch recovery.
I've reflashed, factory reset, cleared cache, cleared the apps cache & data, fixed permissions, pretty much all I can think of! All to no avail!
My contacts are all synced via google, and use Ubersync to pull through high quality photo's from facebook.
However after removing all contacts, ubersync and various syncing etc this is still occuring....
Any ideas?

I've been getting that one lately, and I don't even have Lollipop yet. I am using True Caller and think it might be related to that.

Same problem on my note 4 and I don't even have lollipop yet

rcobourn said:
I've been getting that one lately, and I don't even have Lollipop yet. I am using True Caller and think it might be related to that.
Click to expand...
Click to collapse
Thanks for the reply - I don't use any 3rd party app to manage Phone or Contacts! At least you have an obvious candidate for the cause!
It's driving me nuts!!
I've been in Gmail and tidied up my contacts - long overdue to be fair and how much fun that has been! Maybe there was something up there - though after resync was still occuring so unsure....
I've factory reset again - It seems to be working fine at the moment - something i'm installing or updating must be causing it. I'm now going to install all my stuff one by one until I find what's causing it....

paulrgod said:
Thanks for the reply - I don't use any 3rd party app to manage Phone or Contacts! At least you have an obvious candidate for the cause!
It's driving me nuts!!
I've been in Gmail and tidied up my contacts - long overdue to be fair and how much fun that has been! Maybe there was something up there - though after resync was still occuring so unsure....
I've factory reset again - It seems to be working fine at the moment - something i'm installing or updating must be causing it. I'm now going to install all my stuff one by one until I find what's causing it....
Click to expand...
Click to collapse
So I basically let all apps update themselves before installing or doing anything and here we go - Contacts has now started closing again.....

paulrgod said:
Hi Guys,
Must say I'm loving Lollipop so far, however I have a really annoying issue - my Contacts / Phone app keeps crashing. 'Unfortunately Contacts has Stopped'. This occurs almost every other time I open the dialler. And randomly if I leave it as a background process.
I'm running the German Lollipop build, with BTU UK CSC. I'm rooted with Philz Touch recovery.
I've reflashed, factory reset, cleared cache, cleared the apps cache & data, fixed permissions, pretty much all I can think of! All to no avail!
My contacts are all synced via google, and use Ubersync to pull through high quality photo's from facebook.
However after removing all contacts, ubersync and various syncing etc this is still occuring....
Any ideas?
Click to expand...
Click to collapse
I am also on BTU CSC and German lollipop, no issue at all, but i am not rooted, stock and everything is working great and getting great battery life too.
I didn't wipe data only cache if this helps.

I'm having this on and off. Non rooted. UK unlocked.

Has happened to me 3 or 4 times since Friday that I updated to Lollipop.
It's really random too, once it happened after taking a photo, another time when I exit from Viber.

Thanks for the responses guys - feels better to know i'm not alone.

I flashed lollipop and restored my backup. On every boot I get contacts fc but then that's it never again till I reboot . So looks like it's either not lolipop related or perhaps related to the new modem?

I know this is a note 4 thread. I am using an S5 and started having this issue after upgrading to lollipop. So it is not just the note 4.

Yeah I noticed the error too after installing Lollipop, happens once a day while exiting an app it happens randomly.
Sent from my SM-N910F using XDA mobile app

Hi, had the same problem, randomly of course.
Phone is locked on Orange Romania, nonrooted and started after flashing lollipop.
Tried all....cleared cache/data on contacts, contacts storage, phone, all the apps that are related to contacts, changed date format, wiped cache/data form recovery, factory reset, etc.
Then i thought it must be related to another app....and which one it's the buggiest of all? Facebook
So i disabled facebook (u can't unistall it now...thank you samsung for that and for all the bloatware) and made a bookmark with it on chrome.
So far, no contacts fc and that since yesterday. Normally i'd had at least 4-5 till now.
Hope it helps!

I was beginning to think some Facebook link was at cause here....
This seems to have settled some - i've seen one FC of contacts this morning, and then Facebook updated a short while afterwards. Touch wood - i've not seen Contacts crash all afternoon!

paulrgod said:
I was beginning to think some Facebook link was at cause here....
This seems to have settled some - i've seen one FC of contacts this morning, and then Facebook updated a short while afterwards. Touch wood - i've not seen Contacts crash all afternoon!
Click to expand...
Click to collapse
I didn't see it yesterday all day and today so looks good. :good:

looks like a random thing have not noticed it alday

Its a random FC on 910C also since the Lollipop update. I can not say why? Most times when it fc i want to access the Dailer.

Started happening to me after flashing the German lollipop image. I'm on a UK Three 910F. It's getting pretty annoying.
Sent from my SM-N910F

lrm537 said:
Started happening to me after flashing the German lollipop image. I'm on a UK Three 910F. It's getting pretty annoying.
Sent from my SM-N910F
Click to expand...
Click to collapse
I also note 4 Italian, I returned to Kitkat, because even I have the bug closing address book, also problems with battery and keyboard samsung. I think this will be revised firmware programmers Samsung.

Disable in servise google+, after that this problem fixed

who is experiencing a major touchwiz home issue after lollipop ?

Hello xda !
I have recently updated my s4 gt-i9505 to android lollipop 5.0.1. Now, i am, like many others experiencing a touchwiz home issue. It will just crash when trying to place or move an icon on the home screen.
Booting in safe mode, clearing the system cache and erasing touchwiz home's data don't fix the issue. So i think/hope it is related too our device's settings/ disabled apps/ installed apps.
Has anyone managed to get rid of this issue or could people experiencing the same issue post a list of their installed and disabled apps ? I have attached my app list to this post.
Thank you,
Inse

Didnt disable anything not a single crash!

hare89 said:
Didnt disable anything not a single crash!
Click to expand...
Click to collapse
Let me try that

Working fine here other than a few wee niggles.
SPlanner stops occasionally and I have to reload the widget on the homescreen and on a couple of occasions I've not received a notification tone when I've had a text but it's still vibrated and still had the notification message but that's only happened 3 times in the last few weeks.
I've used Titanium to freeze quite a few apps, such as the Samsung bloat-ware and most of the Google play apps.
Overall I'm happy with lollipop.

Chrome redraw and keyboard redraw many times home screen back to stock wallpaper once in 2 days auto restart..

hare89 said:
Didnt disable anything not a single crash!
Click to expand...
Click to collapse
Thank you for the info, I "undisabled" all my apps and did a restart, but that did not fix it.
Are there any others trying to fix or managed to fix this issue ?
Sorry, didn't see your posts earlier, i have not received a notification email. Thanks for the info all

Whatever you do these bugs come after few days of restarting your phone.. Lollipop fix needed very fast samsung should be reported to release a very fast

androidnandroid said:
Whatever you do these bugs come after few days of restarting your phone.. Lollipop fix needed very fast samsung should be reported to release a very fast
Click to expand...
Click to collapse
Yeah, it is a really bad update, some people mention that a factory reset doesn't fix it, some say it does... I do still think the problem is samsung related and that they will have to fix it.

Today I called customer service people they saying the fix is coming soon but compete stable rom will take at least 2 months

androidnandroid said:
Today I called customer service people they saying the fix is coming soon but compete stable rom will take at least 2 months
Click to expand...
Click to collapse
Thank you for your reply ! I tried the same but they would not answer my question and they «weren't aware» of the issue... It's good to know they are working on it, better late then never !

Everyone facing different kind of bugs lag is with Lollipop animation and touchwiz gallery phone are normal.. Worst bug is homescreen redraw and turning back to stock wallpaper and many times keyboard goes and you think what you can do to type now
Ya they told me the more people will call and tell them they'll send reports to there rnd for faster bug fix

androidnandroid said:
Everyone facing different kind of bugs lag is with Lollipop animation and touchwiz gallery phone are normal.. Worst bug is homescreen redraw and turning back to stock wallpaper and many times keyboard goes and you think what you can do to type now
Ya they told me the more people will call and tell them they'll send reports to there rnd for faster bug fix
Click to expand...
Click to collapse
Guys, i got some great news ! I have found the fix, turn off motion under motions and gestures in settings. No restart is required !

Issue: Facebook app issue when close with back button

*This has been asked in the S8+ forum, but since I am using the S8, I would like to relay the message here,
Guys, I have noticed that, about 2 days ago, the Facebook app began to create a weird issue when I click the back button to close the app. Someone already made a video clip as seen below to illustrate the issue. Does anyone have the same issue and found a way to fix it? This hiccup really annoys me
https://www.youtube.com/watch?v=r5Y9zLsx1g8
Thanks guys

The same here
s8

Same here. Didn't notice at first.. now I do...:crying: hope they fix this soon

Rubixcube92 said:
Same here. Didn't notice at first.. now I do...:crying: hope they fix this soon
Click to expand...
Click to collapse
I really don't know what causes this issue. Maybe Facebook app is the one to blame since I am using Nova launcher and the other guys use stock launcher.

AirSupply said:
I really don't know what causes this issue. Maybe Facebook app is the one to blame since I am using Nova launcher and the other guys use stock launcher.
Click to expand...
Click to collapse
I am also using the stock launcher. Probably is the facebook app as you said. Tested almost all my apps but it's the only one with the problem.

I'm 99% sure there's something wrong with their adaptation to full screen mode and it forces a redraw once you exit. It's been annoying the heck out of me.

I think I found a work-around solution for this issue temporarily. This is how I did:
1. Changed your default launcher to stock Samsung.
2. Restarted the device.
3. Changed the launcher to Nova.
4. Changed the Facebook icon to something else.
5. Clicked on Facebook app, used the back button .... and the wallpaper didn't jump!
I updated to the new OTA today, and the problem came back. However, when I went through the same steps, the issue stopped. Give it a try, guys!

I have the S8 and noticed this too, but I never took note of which app caused it. Now I know it's Facebook

I am unique.butt From Softlinks.
The Solution is so simple click and hold on Facebook App icone Then go into app info and scroll down and find the option (Appear On Top) disable this option now your Facebook app will close with back key if you fave similar problem with ither android app you can do this with those apps as well i hope you will like this solution thanks.