Hello, me again. My game just smoked itself with a ticking player crash. I was testing a longbow from Tetra and the game suddenly crashed. It seemed to happen when i pressed F to swap the bow to my offhand.
Crash Report: https://pastebin.com/AEtVqC4K
Edit: Unlike other ticking crashes this didn't seem to lock my world and force a backup reload. It's still an inconvenience though, so i'd be much appreciated if you took a look at this.

Bow is not supposed to use in offhand. Did you set the configuration file for that item?

Hmm, no, don't think so. I think Tetra uses essentially "blank" items, and then uses tags to define whether the tool is a sword, claw etc. The config will need to have the ability to look for tags on items and then switch the item's type whenever it finds the tag it needs. An addon was made for this very purpose (https://www.curseforge.com/minecraft/mc-mods/epic-fight-nbt-integration) but it currently does not work with Epic Fight 5.0.0 and above.

Hello, It's been a long time. Epic Fight 5.1.0 now uses Datapack (Although the config file is still useable) to define other mod's weapon types and I'm testing it for now. Could you provide me the name of the item you used?

I'm not familiar with Tetra, so I need the information about how did you reach to crash.