Oscilator 1 turning off when a note is hit

Im using ableton 11 for some time now and a couple days ago all my vital tracks stopped playing. It seems that osc 1 level is always at 0 and if I turn it up it comes back to 0 when a new note hits

Right click on either the oscillator on/off switch or the oscillator volume and choose clear midi assignment


thanks, didn’t think it’ll be that easy