Your GTNH Discord Username

beljihnwahfl

Mod Version

1.0.0-alpha12

Java Version

Java 21

Bug Report

I occasionally (maybe 1 in 15 times) get this crash when joining my server.

https://mclo.gs/nwwScxm

Mod List or GTNH Pack Version

GTNH 2.5.1

Final Checklist

• I have searched the issues and haven't found a similar issue.
• I have read the known incompatibilities and this is not related to one of those.
• This issue is not shader related (they aren't ready yet for testing)

Nice catch; looks like TileEntityRendererDispatcher#mapSpecialRenderers should be changed to a ConcurrentHashMap as it's populated lazily and we query that class on the worker threads.