Problem with led feedback when I change position of the session box

Good morning
I have a problem with the LED feedback for the mute function on my Launch control XL. On each track of the session box a button is lit in red if the track is mute and in green when it is not. When I move my box session and there are less tracks inside (6 instead of 8 for example) the mute feedback remains on as if there was a track. I’m trying to find in the reaction function the command “no track” or something like it but nothing. thank you in advance for your help