LrC wants to resync all files in an existing Catalogued folder held on a NAS

I wasn't able to get the Python script working, but the README.md file for the repo included some SQLite information and a query to query the contents of the LightroomClassic Catalog, and I can see from that query that the files on the old "drive" are within the path /Volumes/Public/ while the new files are within the path /Volumes/public/, so as you correctly guessed, it seems to be to do with the way the share was mounted.

Here's how I got a list of files from my Catalog - on a Mac (all instructions originally from https://github.com/thatlarrypearson/LightroomClassicCatalogReader 😞

1.  Make a copy of the catalog file while Lightroom is closed, and work on the copy, not the original.
2.  Download and run the SQLite command line app
3.  .open 'catalog-copy.lrcat'
4. Run the query:
   

   SELECT
     root.name AS root_name,
     folder.pathFromRoot AS folder_path_from_root,
     file.originalFilename AS file_original_name,
     root.absolutePath AS root_absolute_path,
     root.relativePathFromCatalog AS root_rel_path_from_catalog,
     file.baseName AS file_base_name,
     file.extension AS file_extension,
     root.id_local AS root_id,
     folder.id_local AS folder_id,
     file.id_local AS file_id
   FROM AgLibraryRootFolder root
   JOIN AgLibraryFolder folder ON root.id_local = folder.rootFolder
   JOIN AgLibraryFile file ON folder.id_local = file.folder
   ORDER BY root.name, folder.pathFromRoot, file.originalFilename;