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Minecraft version: 1.12.2
Wizardry version: 4.2.11
Environment: Singleplayer/LAN game/Server [delete as necessary]

Issue details: E.g. a Spectral Sword in the offhand when reaches the end of its lifetime, its durability goes to negative and never disappears. Visually it also looks very awkward. Didn't test with armors in the offhand yet, but I'm fairly sure it would happen with those too

Other mods involved: [only list mods that are relevant to the problem]

Link to crash report (if applicable): [give a link to the crash report on gist, pastebin, etc.]