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Minecraft version: 1.12.2 [change as necessary]
Wizardry version: 4.3.1 [change as necessary]
Environment: Singleplayer

Issue details: player rendering crash

Other mods involved:

Link to crash report (if applicable):
crash-2020-11-17_16.28.40-client.txt
crash-2020-11-17_18.53.58-client.txt

The issue you're describing looks like a duplicate of issue #556

Yes, it's a duplicate of #556 and #551.