hi.
yes. it is a bit hard to see as before you turn everything is fine and after turn it is 180 degree rotated.
perhaps you can try this release. it is based on new sdk. i did not see any drift. after I turn them on, they go to proper position and it really works nice.
can you confirm if you see same behaviour in nolo preview ? alternatively you might also try android tetris and tell me if you see same drift problem. this is to verify if the probblem is not with your hardware as I really cannot see any point where I could do something related to drift.
test build is here.