Latest version (v22.6) on Windows 10 (OS build 19044.2006) is suddenly showing the attached error message when I try and import an AEP into the current AEP.
Those AEPs were all created in the same AE installation on the same computer, and open fine in AE on their own. Only on import do they cause issues.
The import does go ahead, but then throws out the positioning on layers in other previously imported (and previously fine) AEPs/Compositions.
For example a previous import of a character (made up of arm layer, leg layer, etc) rowing in a boat, those animated layers now appear spread out in the wrong positions in the composition.
No idea why, have had to roll back to previous AE installation which seemto work.