As an issue, this is relatively trivial. It's more that I would like to understand what's going on (and perhaps improve my Mac education)
I purchased a V6 license a few days ago and have been playing with PM+ (build 3215) on both a Windows 7 and a MacBook Air (10.14.4). So far, I am very pleased with what I see; it seems to do everything I would want it to, or rather, will do.
In playing around, I discovered an issue on the Mac that struck me a being a significant problem but upon investigating, it turns out it isn't, just a minor annoyance.
My photos are stored on a network drive. I have 4 Western Digital drives of varying vintages. They are named Photos, WD-NAS-01, WD-NAS-03, and WD-NAS-05. It is important to note that the top level folder on all drives is named Public and is not (easily) renameable.
On the windows machine, if I choose "Folder Path" View, I get /NAS_NAME/Public/...
While on the MacBook, I end up with 4 volumes named Public. Thus when I choose "Folder Path" view, I find my photos are scattered over multiple volumes Public, Public-1, Public-3 etc. (I scanned to catalogue over multiple sessions, often with a reboot in between). It seems as though whether the photos end up in Public, Public-1, etc is determined by the order in which I had accessed the various network drives since rebooting.
I was sure this was going to be a problem and that I could end up with more than one copy of a photo under "different volumes". So I tried rescanning a directory that was showing under a volume different from the current one. And surprising to me, I didn't end up with a duplicate but instead the folder "moved" from Public-1 to Public-3.
What I find surprising is, at least it seems to me, that the only thing you could be using as the primary key to your database is the photo's location. If that is true and there is no confusion with these changing volume names, then you must also be using the network drive name as well. (Or is my logic completely off base here?)
In any case, would it be possible to have the option to use drive names rather than volume names in the "Folder Path" view on a Mac? This would avoid the problem for me of seeing my photos apparently scattered across 4 volumes when in fact they are all on the same drive.