Editor crashes whenever I open up my character's blueprint or anything referencing it

Editor crashes whenever I open up my character’s blueprint or anything referencing it. It happened after I edited a structure that was in another structure that was referenced by the character, after I edited the tooltips on the structure, and after I compiled the character. All in blueprints. it was supposed to be a character for an RPG game.

Also, the editor crashed whenever I click/right-click my character’s blueprint or anything referencing it. I tried deleting the structure from the PC’s file explorer but it kept crashing anyways.

I had something similar happen to me once. I ended up reverting the file in source control and using the old version. Have you tried opening the character on another computer to see if it’s your local install of unreal that’s the problem, or the file itself?

Clear the Saved/diff folder. Any temp files that you can find clear it all.

Possible reasons :

  1. You were diff checking with previous version of BP.

  2. when it creates a diff view it creates a temp copy of the previosu version of the blueprint. It is saved in the saved/diff folder.

  3. Clear the folder, revert any unwanted stuff from your source control.