Not really, the issue is that you can use more than one device with the same subscription but not simultaneously. It may be possible that the issue dissapear if you only leave active the current computer that you're using.
But in my personal case I also get more than one device listed if I use the same computer behind a VPN with a different geogrpaphical region. The security settings and timezones varies and it lists my device as if it were two diffrent devices. When this happens it forces me to sign out and back in every time I open Acrobat.
Let's say that this is your case, if you're using a VPN choose a VPN server location that is in the same country where you're in. Other than that, I really ran out of ideas. Your particular case is very odd.
I may have to research more and document myself better.
Alright, final update, but first - thank you for attempting to help me solve this issue, I really appreciate it.
Cause: I originally signed up for Adobe Small Business but then realized it wasn't what I was actually wanting to sign up for. So, via chat support I cancelled that service and once it was refunded I subscribed for the personal account via the website. The error happened because I used the same email address and I must not have waited long enough to purchase the new subscription for anything to reset on the account side.
After a very helpful chat with support, they were able to contact the back end department and get everything resolved within an hour - I just had to be a little more descriptive and blunt in my original request so they paid a little more attention instead of pushing me to the forums this time.
Thanks again!