Not sure what's wrong but it does not work on 1.17.1

https://pastebin.com/4CCw6pzV

It does work with 1.17.1. Please paste your entire startup log.

Here

https://pastebin.com/qyZpTyZB

Try this dev build https://github.com/weaves7/SignShop/releases/tag/v3.5.2-dev

I still need the full startup log for debugging.