track change in ableton and freeze

Dear all,

when I press a key on my fantom Keyboard it change the track on ableton and then the sound from the fantom freeze.
Only a few keys change the track. It's alway the same key that select the same track.
No issue with that but it jus freeze the fantom and I need to change the scene to go back to normal.

Is this something special, is one of you facing the same problem?

thanks