Got this by bulk generating model thumbnails at startup. Texture.Load with a thumb: path loads the whole model including its animgraph, and one of the ~150 cloud models I was loading nulls out in CSelectorAnimNode::CreateUpdateNode. Native crash so try/catch does nothing, game just won't launch. 


Heads up if you're loading random workshop models in bulk, one bad one kills the whole game. Doing it lazily helps but it'll still crash when someone scrolls onto it. 


Would be nice if the animgraph binding just bailed instead of crashing.