Fatal Error: EXCEPTION_ACCESS_VIOLATION_WRITE / 0x0 - 7090503764

Fatal Error: EXCEPTION_ACCESS_VIOLATION_WRITE / 0x0 - 7090503764 : crashes/d71ccfe9-6485-4452-5aae-e9172c5bcab9

I was in Hammer, and used the "Create Model" option in the context menu for a (very large) OBJ file. I assume my system couldn't cope with the size of it, and after a 30 second stall the program crashed.

Tried to turn a 47mb fbx file into a model and it instantly crashed and broke the project.