I am beginning to suspect that this is a Bug. Alot of people are having similar issues including me. By any chance were you using 4.26? I’ve restarted a project that I started in 4.26 by copying every asset over by hand to 4.25. Still in the process of transferring everything over.
If I encounter the error again I don’t know what I’m gonna do.
According to this, the poster manage to fix his project, narrowing the issue down to specific a file, but didn’t go into detail about how he identified the file, The issue seems to be a corrupted asset