OK so I have a team member that was working on a worldwide sprint created several classes, and blueprints based on those classes.
at some point they renamed one of the classes which was directly inherited by a blueprint. on opening the editor they ended up deleting the blueprint they could no longer open, and then continued on their way. Then proceeded to forget which class they even renamed (or the original name) to cause the issue in the first place.
now after they committed 20+ classes one of the levels now has a “the world contains invalid actor files. Click the Repair button to repair them” with a “Repair Errors” button.
clicking the button crashes the editor with a Memory Access Violation. the crash log points to the button itself and we are not sure what to look for in the log to even find the complaint. attaching the debugger shows the the button itself, but everything around the line is null.
we don’t know what to put in the redirects (we are unsure what the old name was and which one did it), or even if the redirects will help because going through the outliner level hierarchy everything looks to belong.
the Message Log says the Level has 0 errors and 0 warnings. is there a way to “clean” the level of non-existent actors, where do we even look?