I opened my inventory while doing one of the special attacks from the Ferrous Wroughtnaut's axe. Instantly, I was kicked from the server I was playing on and my game subsequently crashed. This is in Forge 36.2.39, with mod version 1.5.25 (latest versions). Crash log is attached.

crash-2022-10-03_22.33.53-client.txt

same error here, however I am playing on a server too, joined the game again and got the data mixed up/corrupted.