Fixing the bubble as above would be nice. Apart from that is working fine...the guitar, the bass, can be tuned...
As for polytune, get a TC (I have one on all the time).... Priority should get other more important issues (some are already lined up) like the performance mode, undo, foot controller, etc that are already being discussed.
Any other goodies could follow or be given courtesy of the Kemper Team, after the KPA is 100% completed.