Hey guys,
This problem has happened to us twice. We were working in the editor, changing some sprites and duplicating entities, until the editor stopped responding to some actions. We cannot delete entities or duplicate/copy some of them.
Previously we duplicate the whole scene in another one, but now we can’t copy some elements.
The console shows this:
Cannot find child entity e335f697-3fa7-485c-a24c-68555fabfeaf of parent “Door” (597bac1a-fccf-404f-a256-1d6dd65e9c3d)
On delete:
We finded the solution on: https://forum.playcanvas.com/t/cannot-find-child-entity-of-parent-root-editor-error-cant-delete-entities/23048/3
@Javier_Heras It may mean you have multiple corrupted entities in the scene.
If you are still having issues, please let me know via DM and I can jump into the project to resolve
It seems that it happens only occasionally, in several months it has happened to us twice.
Thanks!
Please do let us know if you do see instances of this in new projects. We thought to have fixed the issue that was linked in the thread but there may be another edge case we aren’t aware of 
Hi! this is happening to me now. I can’t figure out to fix it and I can’t make a branch or checkpoint because i’m out of space. Is there anything I can do about this? my due date is tomorrow 
PlayCanvas 3D HTML5 Game Engine
Have you tried the solutions listed in the earlier posted thread here?https://forum.playcanvas.com/t/cannot-find-child-entity-of-parent-root-editor-error-cant-delete-entities/23048/
