Headphone symbol appears seemingly randomly. Average 5-6 times per page when it happens. It's not all the time, but it was most of the time last time I demoed the unit to my brother.
Sometimes, when this happens, the up / down arrows, whilst they change the highlighted rig, don't update the Kemper. Double-clicking reactivates audition mode properly 'though. It's as if the multiple headphone symbols have confused my Kemper, although I doubt this is the case.
Also, any time I copy-drag a rig to another folder, the current list moves a long way away from the active rig / the one I'm copying, and it's a PITA to have to relocate it every time. It actually prevented me from copying some rigs to my favorites folders 'cause I didn't want to have to keep jumping throughout that hoop...