Endless loading of the world when trying to connect to the server. In the debug console, rendering error spam is observed. At the same time, in a single game, the modification does not cause bugs. Perhaps it has something to do with interaction with Optifine or other mods.

When a bug occurs, the screen "loading terrain..." is displayed. Only stopping the game or the server helps.

debug.log
latest.log

yes, bbor confilcts with optifine
theres currently no way to properly fix this problem.