When attempting to join a server with the mod installed on Fabric 1.21.10, the following error occurs:
Internal Exception: io.netty.handler.codec.DecoderException: java.io.IOException: Packet play/serverbound/minecraft:custom_payload (class_2817) was larger than I expected, found 374 bytes extra whilst reading packet serverbound/minecraft:custom_payload
After this error appears, reconnecting to the server is possible, but the player’s skin fails to render.