This crash report is from Minecraft 1.20.1 with Forge, related to YUNG's mods — specifically YUNG's API (yungsapi) and YUNG's Cave Biomes (yungscavebiomes). The error occurs during rendering initialization on the client side, inside the method that creates custom pottery materials.

crash-2025-08-10_09.15.19a-client.txt

The crash is happening in the Minecraft client rendering thread, triggered by YUNG's Cave Biomes mod during the initialization of custom pottery materials in the Sheets class.