[Issue] Crash on 1.21.1 Fabric

[chimericdream]

Minecraft Version

1.21.1

Modloader

Fabric 0.16.2

Mod version

5.1.0+mc1.21.1

Latest version?

• Yes

Repeatable?

• Yes

Link to log files

Crash report

Steps to reproduce the issue

1. Create a 1.21.1 Fabric modpack with nothing but JAMD, Trenzalore, and Fabric API
2. Run the pack
3. Click "Single Player"
4. Crash

Description of the issue you are having

The game crashes when trying to access the single-player screen from the main menu.

Information

• I have provided as much information as possible