Im trying "remote-control" of my Audya5, especially switching registrations via MIDI.

Playing MIDI-files via computer / iPad works fine.

But I want registrations to be switched via MIDI.

RX and TX of registrations in the MIDI-section is set to CH16, no filters selected.

If I choose a registration on Audya the corresponding MIDI-commands ( bank select MSB "0" and program "03" ) are sent to my computer.

Playing this file with my sequencer / iPad the Audya doesnt show any reaction in switching to the corresponding registrations.

Any idea what could be wrong ? Maybe a checkmark forgotten somewhere ?
Greetings from East-Frisia ( Northern-Germany )