Midi tracks linked and greyed out -

I have an issue I cant figure out. I played multiple midi drum tracks I duplicated and played a new part now I have no sound and when I click one they all are linked. the midi notes are there but nothing on the meters. Only one of all the drum tracks work - the one in yellow it is independent. Freeze - link- and disable are all not on.

Any ideas?
Thanks in advance.

If anyone else has this issue the reason was because I had put all the tracks in a folder and the group edit was switched on :wink: