I take it one library isn’t the one that always has the attachments? If it were, I would import the one without the attachments, into the one with the attachments, with discard duplicates on? (added in edit) but I see you said that wasn’t the case…
I take it one library isn’t the one that always has the attachments? If it were, I would import the one without the attachments, into the one with the attachments, with discard duplicates on? (added in edit) but I see you said that wasn’t the case…