高性能和高兼容性的1.12.2/1.16.5/1.18.2版本Forge+Bukkit+Spigot服务端 (A high performance and high compatibility 1.12.2/1.16.5/1.18.2 version Forge+Bukkit+Spigot server)
Looks like tinkers tool leveling dosen't like slashblade katanas, maybe try setting them to not be afected by the leveling process or something, Dose it work propply on regular forge?
https://paste.ubuntu.com/p/FVj8nsTXvS/