@DoctorOhh - I wasn't even aware this PI marked the books for which it found an IDSN value - I had to do a test to see what it did.
I use this PI in my
Receiving Dock library where I assign the core metadata values (author(s), title, strapline and ISDN) before moving the 'books' to their home libraries. In the
Receiving Dock I display the ISDN as a column so its obvious which books get updated.
I missed your "Books Marked on Every Restart" thread. Had I seen it I would have remembered it and bought it to chaley's attention at an earlier point our discussion in the "Show Marked as a Column", rather than right at the end of the thread.
I have a workaround to the books marked as
not_book_duplicate issue - uninstall/reinstall Find Duplicates as required.
BR