Describe the bug
Updating Fabric API from 0.70.0 to 0.71.0 creates this crash on launch.

To Reproduce
Steps to reproduce the behavior:

1. Install Fabulously Optimized 4.6.0-alpha.13 or later
2. Update Fabric API individually

Expected behavior
No crash

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Windows
• Minecraft 1.19.3
• Fabric 0.71.0+1.19.3
• Mods - in the log
• Version 1.7.2+1.19.3
• Branch - compiled release from CF

Additional context
https://mclo.gs/YcxurS5

Notably Fabric API 0.71.0 is in beta at the moment to test for issues like these, but I figured reporting to you would still make sense.

This is caused only by the new Fabric API update.
I've released 1.7.3 to address this issue, along with some nice new features :)