"Lock" button is always lit without anything being locked

I own two Stages and on one of them the lock button is always lit in performance mode. I checked if there is some effect or something else locked in one of the the performances but I found nothing. Does anybody know the solution? I will triple check everything...

Damn, that was it. I use the lock function quite a lot, so I was only focused on those signal flow buttons from input to output in my performances. But it was the rig button on the left that was locked. Problem was that nothing about what was locked appeared on the screen and I did not even know that the rig button on the left (not the amp and cab block in the chain) can be locked.

Thanks guys.