I'm now having the same issue with my PRO-100 using the XPS driver. When I try to print using Print Studio Pro, everything seems to work normally except that instead of a photo print, I get nothing but a blank sheet. No error messages, just no print. If I print using Print Studio Pro and the non-XPS driver, the photo is printed, but I prefer to use the XPS driver whenever possible.
If I print using Lightroom Classic's Print tab, I get a print using either the XPS or non-XPS driver, but I strongly prefer to use Print Studio Pro.
The bottom line is that I now get only a blank sheet when I use the combination of Print Studio Pro and the XPS printer driver. A few weeks ago, the combination worked fine, then I didn't try any printing until today. In the meantime, the only relevant thing that has changed is Windows, with the usual few Windows Updates. Same printer drivers, same version of Print Studio Pro, same printer settings. Like the OP, I suspect that something broke after a recent Windows Update, since there have been no other changes.
There have also been a couple of updates to Creative Cloud components (the usual periodic updates), but I don't see how that would affect using Print Studio Pro.
Anyone else seeing this issue? Any guess as to how to get around it (other than switching to the non-XPS driver)?
