Reopen from MC-189331, because it's still existing

please watch this video. It's from today with 1.16.pre5 -> the bug is still present. You can see the version on ~ 1:20 in the video, it takes a very long time after pressing F3 for MC to display the debug infos

original video:

https://drive.google.com/file/d/122JOpPtBG_YSEl0SF61FJwwOC-wZisLl/view?usp=sharing

(311MB / 4 min)

appended video version:

(compressed, scaled down, accelerated speed ) (debug-info @ 0:30)

 

 also see pictures in MC-189331