Version information

mc1.18.1-rc1-0.4.0-alpha5+build.830 [Latest Actions artifact from 1.18.x/vertex-pulling]

Reproduction Steps

1. Download the artifact and put it in your mods folder
2. Try joining a world (in this case I tried to connect to a server)
3. Minecraft crashes!

Crash Report file

Log file: https://paste.gg/p/anonymous/7e7bab40a9634cf9b46d94615b66423a
Crash report: https://paste.gg/p/anonymous/22d8d88bb7f54d71885c30559332f09e

Additional information

I know this is an alpha build not designed for production use, I'm reporting this issue in case this crash isn't known about

We're not going forward with the changes on this branch, so this issue doesn't matter. It was a short lived experiment.