This is a total long shot....... but reminds me of an issue we had with some card printing software ....... but since it will only take 3 minutes to try, I'll suggest it anyway.
Facility Commander® Wnx offers powerful, easy-to-use, IT friendly, integrated security management under the familiar Microsoft Windows® operating environment. It is a complete end-to-end solution for today’s most commonly deployed physical security applications; providing real-time monitoring, command and control, automation, database.
Facility Commander Manual
On the PC having the problem, open up your printers, set one (any one) as the default, then open your software and try again...... if that fails, close the software, go back to printers, and then set the NEXT one as the default, and try your software again. Rinse and repeat until you have tried every printer as the default.
Facility Commander Wnx Support
I know it sounds odd, but when we had an issue regarding our card printer, I had changed the default printer to the card printer (it is a dedicated PC for card printing only).... and when I did everything stopped working. I thought it made sense, as I had only set the actual card printer as the default, but in fact the software insisted on it being another printer (perhaps one configured elsewhere within the software)...... when I made the printer it THOUGHT should be the default, everything worked fine again.
Facility Commander Wnx 7.7 User Manual Pdf
I doubt it will work, but for that amount of time, it certainly can't hurt to try.