I have Pixelmator 3.9.2. now running OS 10.15.7.
Most of my work involves files on chips from cameras. Since updating to Catalina, I have the following problem.
While editing a file, the message pops up:
This document could not be autosaved. You don’t have permission…..
If I try to Revert Changes, I get: You don’t have permission to save the file …
The same message comes up if I try to just Save.
I also sometimes get the Pixelmator dialogue box saying:
The operation couldn't be completed.
(PTImageIOErrorDomain error 2000).
But Get Info for the chips say: You have custom access.
And Sharing and permissions for the files I'm trying to save or revert always says: You can Read and Write.