"Bookmark 1" failed?

Hi-

I got a notice in the log saying that “Bookmark 1” had failed:

bookmark_1.png
This was while I was exporting files and folders.

AFAIK, I didn’t have any bookmarks. There were only PDFs in my database.

Can someone clarify?

Thanks, Charles

A damaged Kind = Bookmark file, which could be sorted for by Kind in the History view?

A damaged PDF named “Bookmark 1”?