Hello @exilltm thanks for getting in touch with us and sorry to hear of your game crashing when using any of the editing game modes.
It looks as though you have tried some extensive troubleshooting to resolve this, but I would ask you to make sure to unistall any mods you may have installed with the game, as well as run through the following guide and check any steps you have left to try rule out a few other things >>
https://www.ubisoft.com/help?article=000061047
Should none of the steps resolve your issue, can you please send us your dxdiag and msinfo files so we can pass this on to our dev/QA team to take a look at, as it could ...