I tried it with any of the possible settings but it doesn't work. The glitch is still present after holding bank up/down together and landing in "bank"-mode.
And it's not only changing the "function of the switches" - whatever this should say:
If you set the unit to "preset", "snapshot" or even "bank" in the menu, go back to the interface and then hold up/down-buttons until you land in another mode, you will find exactly that setting (last one used) in your menu.
I opened a ticket today.
And here's another thread, same problem: