Problem with instrument track and midi channel

[ultramax]

Hello,
i'm trying to figure out a question i'm facing, situation is as follow:


i have a workstation keyboard (namely, roland fantom x) and i use it as midi controller also in PT; keyboard is connected via midi cable (Fx midi out-> arturia midi in ) with my audio interface.

So question is:
if i run kontakt standalone with more than one istrument loaded in my kontankt instance, each midi port /channel assigned to the instrument (eg. (A-1) instrument 1, (A-2) instrument 2 and so on) answers as expected with the midi channel i send the data from my keyboard (which has 16 channel from mixer) , that is if i play from my keyboard selected on midi channel 2, the instrument on kontakt channel 2 plays correctly.

BUT, if i run kontakt inside my pro tools studio (latest version 2022.10), with multiple instrument loaded (or a single instrument with multitimbral channels like xpand2 ) no matter from which keyboard channel i play, PT plays/received always on midi channel 1

i've gone trough various tutorial about how to set midi, all seems fine but i still get this behaviour in PT

any hints welcome, thanks in advance