Error. Cannot find child entity XXXX of parent Root (XXXX). & I can't delete any Entity in Editor

Hello…
I cant delete any object / entity in Editor.
* And in console - I see error at project loads:
Screenshot 2026-10-11 211838

How old is the project?

The reason I ask is because there was a bug a while back and wondering if it’s a regression or just an old project with the problem

Possible fix here Cannot find child entity of parent "Root" - Editor error, can't delete entities

CC @KPal for visibility

± 2022 (november).
Yeah, but I thought that bug had been fixed in the engine a long time ago…
Is there really no easier way to fix this bug? )

The solution in the thread where you make a commit, branch and then merge immediately is the simplest fix.

The cause of the bug was fixed a while back. It didn’t retroactively fix projects that already had the issue which it looks like in this case

Hi! Could you add me to your project? i can take a look for you - username: kpal
Thanks!