My experience with the MC Kiosk software update:
Tried the new BB button. Steps were pretty much the same as before until I selected 'Debit' as payment option. Next screen said 'Do you want cashback?'. Odd since it usually asks to slide card and enter pin first. I proceeded thinking it might be backwards with new SW. No to cashback, confirm total, then get a debit card error. Uh, yeah, maybe because you haven't let me swipe it yet?
Tried again, this time swiping GC before choosing the debit option. Still jumped over the PIN input step and wound up with error again. Same behavior if I tried using the old WMMC button instead of BB.
The whole time the speed of the kiosk was all over the map. Sometimes super slow, other times moving along briskly.
I was able to load with cashiers no problem. I'm just hoping that the kiosk gets sorted soon.