Describe the bug
When you change the chat visibility to Vanilla its disable all entity render, including player, player hand, and entity
but When you change the chat visibility to Focus Only you Minecraft game freeze (the game log also freeze)

Minecraft Info
Minecraft information:

• AdvancedChat-3.0.2-1.16.5

To Reproduce
Steps to reproduce the behavior:

1. Go to Chat Setting
2. Click on Chat HUD
3. Set the Chat Visibility to Vanilla or Focus Only
4. See error

Expected behaviour
No error appears
Additional context
Quite a lot...

Fixed