Had a crash report, (in Antimatter 0.4.12.zip (beta))
Hopefully it's a 1 off crash.
crash-2019-04-20_19.51.05-client.txt

Another user has reported this crash a few times as well.

This is hopefully fixed in 0.4.14, but i'll leave this issue open until we're sure

I have not had any reports of this bug in the last week or so, so I will assume it is fixed. If anyone else has this bug still feel free to create a new issue