Another funny workaround seems to be to move your graphics to another folder, and leave them where they are.
To explain, after the final beta update, many were getting constant crashes, me included. The advice at the time was to remove the graphics from where they were, verify cache and then try the game again. For ease of remembering where they were, I simply moved my Graphics folder into the 'Crash Dumps' folder. As they are still in the structure, they are still recognised in game, there were no more crashes and the Workshop works too.