I just completed a project, closed the app and then wanted to go back in and make a change, and I got: The document XXXXX.pxm couldn't be open.... Document is damaged, or isn't compatible with Pixelmator 3.8.1
I can open other projects but not the one I was working on.
Is something not working like it should? Let us know.
This error probably has a variety of possible causes. Last time I saw it, it was caused by a transient iCloud sync problem. If the file that is showing the error is on iCloud, have a look at the file size. If it's zero bytes it may well be that. Mine just went away in a few hours after Apple sorted whatever problem was causing it.
Thanks, Ive run into that before, but in this case it is "fully" on my desktop and I get the same error.