Jeff,
Well, I carried out the normal procedure of double clicking on the P/M update icon in "downloads" which then brought up the box showing the update being uploaded with striped blue lines showing the amount being uploaded, then the box came up with the P/M icon and the applications boxes in, dragged the P/M icon onto the Application's box. I've never checked that the update was successful by checking the version No. as I took it the update was complete. Until you mentioned 19094 today, I hadn't realised that by P/M hasn't been updating at all. And it took several attempts to complete the update. For whatever reason dragging one icon on the other continually failed. For that to happen on both my Macs does seem strange I accept. It could be something Apple should correct and program Mac's with automatic updating. But I will ask my photography colleagues if they have experienced the same. And if they have I will certainly let you know.
I'm a bit confused by this. Maybe it's differences in what you describe as "uploaded" and what I understand uploading to mean. The latest builds of PM can always be found at our website:
http://www.camerabits.com/downloads/On macOS, the file that you will download is a Disk Image file (ends in .dmg). When double clicked in the Finder, the disk will mount, a legal notice will appear and once confirmed, a Finder window will appear with the contents of the disk image. Dragging and dropping the application from the disk image to your Applications folder (you can do all of this in the same window since we have provided a shortcut to your Applications folder) is all that is needed to update to the latest version.
I don't understand what the 'striped blue lines' are and why there would be any uploading. Perhaps you're describing the download experience in your web browser?
If the copy of the application is unsuccessful then I expect that you may have a permissions problem on your boot drive. I suggest running the DiskUtility and having it repair permissions before attempting again.
Thanks,
-Kirk