I'm evaluating the trial pixelmator pro version.
I was testing the extesion integration with photos app and I see that I'm not able to save the editing to my icloud library.
I select a photo, then edit, three dots and then edit in PixelMator Pro Trial.
I made the changes I need then save.
The extension tries to save the images back to my photo library (I've tried both options: "flattened result" and "preserve editing")
but then exits with:
Impossible to save the edits for "Pixelmator Pro Trial"
An error has happened during the saving. Try later.

How to solve?
TIA.