Analog Rytm MK2 issue with the BD pad in mute mode or scene mode

I bought a used Analog Rytm MK2 , and I’m having an issue with the BD pad—it doesn’t trigger in mute mode or scene mode. even after trying factory reset or installing new firmware
but when I performed a empty reset from the Startup menu and tried triggering it again, it only triggers once in mute mode and then stays muted. However, all the pads work ok in play mode.
i dont know if it is a rubber pad problem or some chip problem
I’ve recorded a short video demonstrating the problem with the BD Pad in mute mode and scene mode, which I’ve attached for your reference.

did any one had the same problem thanks in advance