Data Roaming in a foreign country - Omni Q&A

Hey guys,
i´d flashed my Samsung Galaxy Note ii lte with the last Omnirom Version "omni-4.4.4-20150520-t0lte-FINAL", and it works great.
But on every journey i still have to use the WIFI because my Data Roaming option doesn't work.
Every time i switch the Data Roaming on it turn back to the default. Off.
Is there anybody how can fix this or got the same problem?
Best regards … waiting for help
Konrad

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