I am using Snapshot mode and under certain situations, if I tap the the preset up/down arrows, the Stadium gets stuck on the "--- New Preset" screen or freezes up entirely with no easy way to get off of the stuck screen. This would be pretty terrifying if it happened live. Tapping the preset up/down arrows stops working so you can't get back to your previous preset. If I save the stuck or empty preset, then I can get back to my presets list.
My presets are set up as follows. This behavior happens when I am on "2C" and I tap on the preset up footswitch. Or if I am on "1C" and I tap the preset down footswitch.
1A Empty
1B Empty
1C PRESET 1
1D PRESET 2
2A PRESET 3
2B PRESET 4
2C PRESET 5
2D Empty
3A Empty