Since the fix ofMCPE-220353 I can no longer move the camera with my thumb while holding the use button with my finger. I can only use and move :
if i don't slide the other finger.
If i slide the finger i can then only move the camera while holding use with the finger on the use button
And After a certain time the camera flip to bottom or up.
Also i cant run and jump at the same time (the jump button is in top of the joystick)
It is really frustrating and it was working great before 1.21.93.
This big report have better wording about this issue : https://report.bugs.mojang.com/servicedesk/customer/portal/6/MCPE-224290