Frozen models when entity dies while leaving view distance
Experiencing quite a game breaking bug on Paper 1.19.3 (latest dev build) and the latest version of ModelEngine (3.1.3) where a model will become frozen if it dies as you leave the render distance of the mob. The update 3.1.3 mentioned fixing this but I am still able to replicate this bug 100% of the time.
To replicate, I simply just spawn in 50 custom modeled mobs (via MythicMobs, but I have also tested with my own mob system utilizing ModelEngine and it has the same issue so I believe the problem does lie with ModelEngine specifically) and have them fight it out. I wait until the mobs are low hp then I fly to the edge of the view distance where I can move back and fourth so that they come in and out of render instance. Doing this as the mobs are dying pretty much guarantees more then half of the models will glitch and not get removed after dying.
Some things worth noting: All of the broken models are either in a damaged state "red tinted" or in their death animation (in my case lying on the ground) which confirms that it is related to the entity dying while going out of render distance. The glitch is also client sided so other players cannot see the same broken models that I can see (vice versa) and relogging or even changing worlds removes all of the broken models.
I can provide screenshots and/or videos if it will help but from my experience the bug is very easy to replicate (I can consistently get like 25 out of 50 models to glitch)