I have a character that it moves upward and it has a camera that follows it. Building the project on my computer the game hasn’t problems. But, bundling the game on mobile the character starts progressively wiggling as it moves on.
I have tried both orthographic camera and rendercam and it has the same effect.
This is what happens on my iPhone 6 with iOS 12.2 (I have even tried on an Android device and it does the same thing):
Basic test project: Camera bug.zip (3.6 MB)