This bug is on Android 10 and 9 too that I have tested.The bug is while in low light conditions if I focus to a deep surface then the centre of the camera screen is showing a pink patch and the photo taken has this patch too.Flash on photos are fine
.I went to Asus service centre they saw the bug but on their diagnosis software not found it as a bug.So the service engineer brought another two Asus 5z phone to check and guess what , those device had also this issue.Then he said I can't do anything as this is a bug with all Asus 5z.(I tested it on a deep blue baby mat and a deep blue towel)I don't know what to do now.
Attached screen record video