We recently upgraded our controllers to 8.9.0.3 to accommodate AP635's. In testing we discovered that when connecting to eduroam, the user name was simply "@domain.edu" in the controller. Airwave (8.2.14.1) also shows only the "@domain.edu" portion of the username. Looking in CPPM (6.10.7), we see the complete user name just as we would expect. Users authenticating to other models of access points show the complete username as well.
Other SSIDs that do not use the "@domain.edu" appear to work fine on the AP635.
Any thoughts on what may be causing this?