Mod Name

Blockus

Mod Homepage

https://modrinth.com/mod/blockus

Minecraft version

1.21.1

Describe the bug

the game crashes when rendering some items

Steps to reproduce

1. add connector, ffapi, and blockus to your mods folder
2. start the game create a new creative world
3. open creative inventory and go to blockus natural tab
   
4. the game will crash

Logs

https://mclo.gs/qwZnxA4

Additional context

here is the standalone crash report https://mclo.gs/9oNETFn

I suspect it's a issue with the ffapi implementation of the fabric rendering api