Watch the second half of https://youtu.be/XzgqDXBhkds
and see what you need to fix for me to play minecraft. After 15 minutes it starts using more and more RAM and it gets worse and worse until a grey bar appears and blocks the screen when I use any UI at all. It never loads or goes away. I WILL KEEP REPORTING THIS UNTIL YOU FIX THE DARN GAME! THIS IS ALL YOU NEED TO FIX FOR ME.
Stop duplicating your reports. If you don't stop, you will be banned from the bug tracker.