Blocking entering world while model loading is not working

[anatawa12]

Before submitting a bug, please make sure following checks.

• [X] You have finished loading all model packs before login to world/server.
• [X] You're using the latest stable, snapshot, or daily-snapshot version of fixRTM.
• [X] You're using correct version of RTM and NGTLib for your fixRTM.
• [X] You couldn't find same bag in the issues.

Descrive the bug

Blocking entering world while model loading is not working

To Reproduce

Try to enter world while model loading

Expected Behavior

Entering world blocked

Actual Behavior

We can enter world without any notice

OS

macOS

Minecraft Forge Version

dev

fixRTM Version

8c5aca9

Other Mods

No response