The camera gets confused in a way that's frustrating.
For an example, you can turn the camera in any way and at any moment you could think that you are facing one way but when you start walking forward or turn the camera to third person, the player will be facing the wrong direction.

I can recreate this frequently by:
1. Turn the camera left or right
2. Start walking forward or backward or set the camera to third person
3. Repeat

When playing casually this can become very frustrating if you have very low tolerances for something like this.

(Platforms I have experienced this on: Andriod 8.0 and Nintendo Switch version 9.0.1)