Minecraft version: 1.12.2
Wizardry version: 4.2.10
Environment: Singleplayer

Issue details: I killed an ice wraith and I got a fatal error

Other mods involved: holoinventory

Link to crash report (if applicable): https://gist.github.com/mxnmnm/fd03d594e9c1401e5995b54c936ea332

dries007/HoloInventory#40

An entity with a null UUID... that's a new one on me, but easy enough to fix I guess. Thanks for reporting.