Reverting back to 16.29 fixed the problem for me. I chatted online with a tech support person and they sent me the link to download the older version.
I updated to macOS Catalina a couple days ago and since then have the same problem and am unable to just save any edited files without working around this problem (open file, edit it, delete the original file and associated folder, then save the edit file).
How did you get hold of a tech support person who can provide the link for version 16.29?
Thanks
-Ray