Forge v14.23.5.2807-1.12.2
Quark r1.5-141
AutoRegLib r1.3-24
I got this crash after I created a new world and loaded the world up. Seems to be related to the Quark Emotes
Crash Report
Log

Nop, It still has the same problem.
crash-2019-01-12_23.09.58-client.txt
LoadingPlugin (Quark-r1.5-142.jar)

hopefully it's fixed now, but I'd like to add that for me this was triggered by teleporting to another player on the server, eventhough no emotes were in use.