<<< HERE IS THE SOLUTION >>>
I had the same issue here. ToneX MAX Software authorized but "0 of 5 devices authorized".
What solved the problem was KLICKING THE DOUBLE ARROWS (this update style button) beside my user name in the up right corner of the product manager app.
Klick that update button and soon after it says "1 of 5 devices authorized". After that you can access the librarian tab. I was prompted immediately to update my pedals firmware.
