Responding to this is low priority. From a different thread, I read, with interest, the following:
If the image came from the catalog, the mapping of the UUID to the last known path is always performed as the metadata for the image is streamed from the Catalog server to the Photo Mechanic Plus client (they usually both run on the same system.)
Does PM+ officially support running client and server on separate systems? If so, where can I find the documentation to explore it?
Also, it is interesting to me to browse Apple's latest Photos APIs, and their photo library databases within an Apple Photos library and get a glimpse of how they're supporting syncing the photo library with their cloud services and with shared albums. It would be great if someone, somewhere could add could sync and multiple users to a photo catalog software DAM implementation that worked in a user friendly way without all the headaches of an enterprise class DAM system and the IT support that goes along with it to support the server and multiple users.
Clearly, with the improvements that Apple has made to Photos, from way improved photo editing capabilities, to face and category search and recognition in the library, to sharing photos with multiple users, they are heading in that direction. For example, I just discovered that if you search for "plant", it tries to return all photos with plants in them as a primary subject. It's not perfect yet, but pretty amazing for what it does considering it's not using any previously added tagged metadata to categorize photos of plants.