I don't know what issue you ran into, but it should be resolvable. It's likely that almost all media organisations and photojournalists using Windows 10 are also using Photo Mechanic. Also, I just had a look at the Photo Mechanic forum and I don't see many posts about Windows 10 problems. If you want to pursue the option, it might be worthwhile to explain the issue on the Photo Mechanic Forum and see what responses you get.
I've only used Photoshop/Lightroom, Capture One and Photo Mechanic. As you know, there are several other options. Out of curiosity, I've been thinking about installing Phil Harvey's ExifTool, which is available for both Mac and Windows. It's well-regarded, free and actively maintained (the most recent version was released yesterday). It will read, write and edit IPTC and XMP data as well as EXIF data. However, note that it's a terminal app, run from a command line, with no graphical user interface. There are options, which Harvey explains on the ExifTool website, to install it as a full application or to use it as a utility.
I should add that I'm talking about the standard version of Photo Mechanic. Photo Mechanic Plus, released in 2020, adds a full-blown catalogue function. Photoshop/Lightroom and Capture One have their own catalogues. As attractive as the Photo Mechanic Plus catalogue is when viewed in isolation, having both an Adobe or Capture One catalogue and a Photo Mechanic catalogue has workflow and storage consequences. I'm currently considering PM Plus for the second time since its release, and for my needs I'm not yet convinced that it's a good idea.
Bookmarks