also, minecraft dosen't launch with weak internet connection. mobile users paid $10 for this game, so we expect better from mojang
1.15.2: in a server, we were both expiriencing it.
[NOT A MOD]
I think this is an intended feature cause for whatever reason you want to spawn endermites in the end and dont want endermen aggroing.
actually, i,, a vanilla player, encountered this glitch and punched myself to death while trapped inside
also it's been in minecraft forever. think around like 1.5 years ago or something