Device. Sony xperia xa1 

The camera makes involuntary movements when you are walking while you hit or do some kind of action in gameplays.

Example:in the attachment you can see that camera moves while im  planting wheat. 

This bug would kill you in game because it can desorient the player. 

I think that only happens if you put both fingers at the screen(moving and hitting) 

Please fix this bug, motion is one of the most important features in minecraft.