Bare conductive multiple touchboard

Hello,
I’m using touchboard from bareconductive to receive trigger trough MIDI


And this is the code

When multiple board is connected, touch recognize it, in fact i see 2 device in the Midi Mapper dialog, but only the first connected board work, If i disconnect the board wich i receive signal the other board start to work.
I’m using 2019.20140 on W10 machine