Schematica-1.12.2-1.8.0.169-universal
LunatriusCore-1.12.2-1.2.0.42-universal

Running alongside Pixelmon Generations 8.2.2:

pixelmongenerations-1-12-2-8-2-2-universal-jar
pixelextras-3-2-4-jar
optifine-1-12-2-hd-u-f5-jar
custommainmenu-mc1-12-2-2-0-8-jar
BiomesOPlenty-1.12.2-7.0.1.2444-universal
Forgelin-1.8.4
librarianlib-1.12.2-4.22

Crashes happen within minutes of loading into a server
restarting the computer helps temporarily but issues persist restarts
reduced graphics to fast from fancy
turned off and re-enabled VROs

crash-2020-12-14_22.56.07-client.txt
crash-2020-12-16_19.49.56-client.txt
crash-2020-12-16_19.54.15-client.txt
crash-2020-12-16_20.09.34-client.txt
crash-2020-12-16_20.42.54-client.txt
crash-2020-12-17_19.44.36-client.txt
crash-2020-12-17_20.05.40-client.txt

Any suggestions to avoid it or if it is truly an issue I'll be happy to provide more crash reports and try other configurations