Constantly crash at editing/copying a level

Hi every one,

I have been searching through the forum but I couldn’t find any solution for this:

Everything I do with a level, Unreal engine crashes. I have tried to migrate, “save as”, copy, move from a folder to another. Once I create a level I can only add content to it but I cannot do anything more. I have tried with older versions (Backups) of the same project. The result is the same.

Can anyone help me or point in the right direction? I feel very lost right now.

Thanks in advance,

Edit: Sorry, forgot to say that I cannot open anymore that level in the editor :frowning: but I can still load at runtime as an “open level” node. Also working with Unreal version 4.24.3