We think the Android devices local tracker.geodatabase failed to upgrade (hopefully a rare occurrence).
The easy fix is to clear out Field Maps local data:
- Close Field Maps
- Settings -> Apps -> Field Maps -> Storage -> Clear data
The next time you open Field Maps - it will recreate the local tracker.geodatabase automatically.
You should be good to go after that, let us know if you have any more trouble
On behalf of the Field Apps Team,
-Jake