Hi, I’m having a serious

I’m having a serious problem with my APC40 MK2: when plugged on Ableton, only the faders are woring, but I cannot launch the scenes with the push buttons, nor change the “PAN” control for others control “SENDS” or “USERS”, or others functionalities.
I checked the MIDI parameters, changed the USB cables…. Still the same.
Any ideas ?

James Knights Facebook fb.me/breakinscienc3

James Knights Facebook facebook.com/breakinscienc3