Fatal Error: EXCEPTION_ACCESS_VIOLATION_READ / 0x0 - 7202696676

Fatal Error: EXCEPTION_ACCESS_VIOLATION_READ / 0x0 - 7202696676 : crashes/2e6b1b16-2f74-4f1c-26ec-2a0434e72f88

deleting or editing texture file bake-giganticnumbers caused the crash

I was restarting the editor after altering a custom tool that would assign certain meshes on an imported Source 1 map the toolsblack material and it crashed mid-launch. 

Started the editor, boom.