[unboggling]

I moved all metadata from custom fields to the Tag field then deleted the custom fields. That seems to have fixed the problem of custom field data missing after saving/adding since there's no custom field data anymore. BTW ducks, previously the copy-to-other-library command apparently just copied over the same opf files because that didn't fix the problem, but thanks for the suggestion anyway. What apparently helped was deleting the custom fields, or more likely changing the metadata in all of the records.

Not sure if it's related or not but I have a continuing problem with losing books during saving/adding, approx a tenth of a one percent of total. Automerge is off and I always import title dupes. The library contains only epubs and no other formats. I tracked down two of the missing books (not easy) and only one was a title dupe with each record with its own epub format and differing metadata (eg, one tagged "acquire' and the other tagged "goodFormat." Those and the other missing book had no distinct problems and good file permissions. I've no idea what's causing the missing books.

I created a new library today and noticed that its metadata.db file has permissions for user rw, wheel r, everyone r. The metadata.db file in the older library has user rw and everyone rw -- after presumably wheel getting blitzed by my doing a global permission reset the other day on all my library files. I've seen wheel in the past and assumed it had to do with custom application privileges, but have no idea of its significance.

Thanks for any clues regarding missing books and/or wheel.