Switch to ATTI mode when flying

[yb2eya]

When my Mavic flying with GPS mode, suddenly switch to ATTII mode and it become uncontrollable. Just floating in the air and move unpredictable.
This condition just a few seconds and suddenly back to GOS mode and I can control the Mavic. After a while it happen again.
The Mavic connected to 13 GPS satellites. I have calibrated the compass before flying. IMU is good.

How we can resolve this problem?

 

[JD914]

This happened to me in January, I calibrated the IMU then the problem went away and never happened again. I don't know if it was the IMU that needed calibrating or a software update but something seemed to fix the problem.

 

[yb2eya]

Thanks. Will try it.