Well I started as a tester 27 years ago at Atari (I STILL GOT IT BABY) not only did I repro with a blank project, I crashed the editor 100%. Some people say I do gods work.
The repro is pretty easy, open any project, and you know that magical little plus + sign where it allows you to create folders use that (not the sane method of creating a folder by right clicking and creating a folder it is too slow it is for lesser devs.)
Spam create a ton of folders like 20, this happened to me with 6, and then start deleting them randomly, then move an object into one of them randomly, and then delete that folder, then save the project, close the project, then reopen it, then, keep deleting the folders, working toward the middle or bottom, the editor will crash at some point. Delete the folder you created that has the temp object in it seems to make this happen more often.
At some point the entire tree of folders will just disappear but they are still there, if you close the editor down and reopen it, then delete one the editor should crash when you delete that next random folder.
When you come back to opening the level again you should start to see that some folders will not delete, you can get rid of them one by one by deleting the folder saving the level, then reopening it, at some point you will have one left.
That was the last one, now this happened to me when I was re-org’ing a map file that was getting out of hand and sloppy, and I spam created 6 folders one extra because I am blind and cant see well anymore but refuse to get glasses because I want to look cool.
Its all about that + Create Folder button at the very top right corner of the editor if you are setup like I am in the video not sure what the default settings place it, but it is attached the world outliner and hitting it really fast it seems.
I am willing to corrupt a blank project if you cant get this to break for you and send that.