Whenever I try to load new icons, (Note, some icons still load.) the game just instantly closes. This is very annoying, as you can imagine.
The model you are trying to load is not supported by GMod ( L4D2, Portal 2, Dota 2?, CS:GO, SFM models ) or is corrupter.
Disabled Left 4 Dead 1 & 2 and CS:GO, that fixed it.