I mention the possibility of a bug mostly because there is no specific error message, no information in the engine log and the fact that a similar type of backup using @DanThomas ' macro works fine.
I am preparing backups for an off site location where I must go today. A comment by @peternlewis would be greatly appreciated.
KM 10.2 Monterey latest version.
When I try to export all macros as folder, I get the error message below. I tried multiple times.
The engine log makes to reference to that menu command
I tried to quit the KM engine and editor and restart but the problem persists.
A similar type of backup using the Dan Thomas method works perfectly.
Not really, but then I don't know what Dropbox is doing in its folder that might cause this.
I would guess that an attempt to create a folder, or create or write a macro file, is failing with an error message. Maybe Dropbox doesn't like some character that is used, or something about the file names.
There might be more information in the Editor.log file.
What happens if you select one Macro Group and "Export as Folder"? What happens if you change the name of the Group to "Test Group" or similar and export that? You may also have to change macro names, so try a test Group with only a couple of (duplicated) macros in it.
Slightly worried that everything in your screenshot is named .something, which means your Groups (along with the macros inside them) will be hidden after export -- perhaps that's what's confusing things. (It doesn't on Mojave, but I don't have a Dropboxed Monterey machine to hand to test on).