Never used foot switch. Mute Fx button does LRM not the monitors only master monitor pot turns down Fx at the top section & pot Aux master turns the volume down on the monitors.
Why i think it’s before the master pot outputs is that i cannot hear Fx on monitor mix 1-4 when ppl. ppl channel with Fx on you can hear Fx ppl Fx you can hear. That’s why i am a little confused about this problem
Yes it’s has been read a few times, & the AUX Fx pots top of Fx area are all turned up to max still nothing. I have noticed some times Fx stops working with in a show so desk power down & on then it works again works.