You’re probably hearing the last slice selected ! The tricky bit is that the OT possibly takes 20-40ms to actually change the slice. That’s the experience of a few of us, search the threads and compare notes
Assign spoken words one to sixteen to the pads as an easy way to verify you are hearing what you pressed, it’s easy to assume it’s working when the slices are sorta random !
I may be wrong, but why don’t you check it out first then report back