Hello Paul,
an (honest) update to this topic.
I had a conference call with the technician and it was pointed out to me that the (only?) part where you actually tie the devices to the used licenses is when you generate a separate report through REPORTING - TEMPLATES - PULSEWAY ANTIVIRUS. As said, this is the part where you get ALL the devices that have or have not installed licenses on them, in the header you get the same USED vs. UNUSED pie chart of total AV licenses and then you can manually count and check if the actual installs tie up to that info.
To be honest, it was a mistake from my side (thinking that there were licenses charged that are not in use) but I believe it was a honest one - figure this: if you go to the ANTIVIRUS - AGENT STATUS and then the only place where you see numbers is on the big blue buttons at the bottom. What I did is that I selected ALL statuses in the STATUS segment and it showed to me two sets of numbers "INSTALL XX" and "UNINSTALL YY". As it was pointed out to me this represents ONLY ONLINE SYSTEMS that actually can be manipulated either way with them buttons. And IT DOES MAKE SENSE NOW, but also I believe someone else might do the same - count X + Y and see a difference of Z systems that are "missing".
You can count INSTALLED systems manually on the scroll page shown in the same section or (WRONG) just "count" the numbers underneath as I did and make a mistake.
As said, the buttons only represent ONLINE systems (to install or uninstall AV)
Not sure if you guys could do anything regarding this (not needing to generate an actual report to see ALL of the systems that are using the AV licenses and not only the ONLINE ones) but I believe someone else might find this an issue too.
Hopefully that person will find this tread before reaching out and bothering you guys.
Anyhow, thanks to the whole bunch that reached out and helped, great people with a great product (that might be a bit confusing at times).
Cheers!