Action of master track in the script automatically HIGHLIGHTED master track When select other tracks

Hello

My Problem : An action or a listening function of the master track in the script automatically positions me on the master track when I want to select other tracks

Buttons select tracks other than the master track (select track 1, track 2, track 3, etc.)

When I send MIDI notes to an external MIDI instrument on a different MIDI channel than the buttons that select tracks, the selected track or the highlighted track automatically becomes the master track.

This bug occurs every time I activate my external instrument or MIDI notes are sent.

When I delete the functions or actions that affect the master track, this bug disappears, but I can no longer access the master track.

When I desactivate the external instrument track, this bug also disappears.

Will there be constant listening to the master track that would cause this feedback problem?

This problem is annoying because we can’t stay positioned on the desired track because, of course, an external instrument track is armed.

Thank you in advance for your help.

Sincerely,