Java 11 java.util.ConcurrentModificationException

Missing textures. See log in attachment.

Basically it can't bake models, here's first line in that log:

[10:03:52] [Client thread/WARN]: Unable to bake model: 'minecraft:vine#east=true,north=false,south=false,up=true,west=true': java.util.ConcurrentModificationException