Tested with no other mods installed besides Fabric API and MedievalWeapons. Client launches without issues but server crashes on startup.
Deleting the "MinecraftClientMixin" line from medievalweapons.mixins.json in the server's medievalweapons-1.1.5.jar works as a temporary stop-gap solution.
https://gist.github.com/Moosewing/71097c2917f5e331fe89ec7e12f6abdc
Tested with no other mods installed besides Fabric API and MedievalWeapons. Client launches without issues but server crashes on startup. Deleting the "MinecraftClientMixin" line from medievalweapons.mixins.json in the server's medievalweapons-1.1.5.jar works as a temporary stop-gap solution.