DaltonST,
My apologies for the delay, but I finally was able to follow your troubleshooting protocol and have a preliminary example for my second problem (no URL). As you requested, I performed a single-file collection comparison, import, and then compared again to successfully import the item and update the metadata. However, the URL does not appear in the Calibre item identifiers, although it does appear in the #zotero_url field.
I am attaching the Zotero collection export (single.csv), the debug session (ZMIDebug.txt), and a Calibre export of the item's metadata (Calibre_IM224CLR.csv). None of these have been edited.
(The only Zotero exports I have edited in the past were to update the URLs to a format that JobSpy+ would recognize to add the missing URLs in Calibre)
Regarding problem # 1, There were 33 files that did not import properly in my last import. I will troubleshoot that separately and update in another post.
Thank you,
snow-raven
ZMIDebug.txt
single.csv.txt
Calibre_IM224CLR.csv.txt