I have the following devices all connected at the same time when I first tried running the aquasuite setup which I believe completely screwed me over on the licenses, as I am only licensed now for up to aquasuite 2017 but everything else I read said it should have been more than that....

-Aquaero 5 XT
-Aquaero 6 Pro
-Poweradjust 3
-Poweradjust 3
-MPS Flow 400
-MPS Flow 400

Looks like it contacted the update server & registered all my devices at once, but only gave me one license upgrade to 2017 for one of the aquaero's... I've tried disconnecting & running the setup with each device individually connected one at a time & it never shows anything newer than licensed for 2017. Seems like the kind of thing you might want to warn people about before convincing them to move to a new licensing system - had I known ahead of time this would happen I would have only had one device at a time connected & then ran the setup with each device so it would correctly apply the license upgrades instead of lumping and using all the serials together but then just giving license for one of the devices.