Problem: Unexpected/unexplaind quad twitching with MPU6500 based FC.
Cause: This behavior appears to be a vibration induced artifact that affects the MPU6500 gyro.
Work around: Vibration isolation. Place rubber o-rings, rubber standoffs or other vibration islolating device between the standoffs and the flight controller (FC).
Example Video: twitching issue
Comment by Richard w/ FarWestRotors
FC = Falcon F4 board
Twitches occur on loop settings L1, M1, M2, or M4.
Twitches eliminated on loop settings H1, H2, H4, and H8.