Master volumen doesn’t work #quad-cortex

Master volumen doesn’t work Quad Cortex. The guitar sounds without no control with the master volume

When you use the volume button there is a option to assigne the knob to the different output.
Mine is only adjusting the Headphones volume for exemple.
All the other output are full on.

There are 4 boxes to check/uncheck

The four boxes need to be check or uncheck to work properly?

If you check the box then the knob will adjust the volume of the specificity output you chose.
If not checked volume is full ON.

Unchecked the 3 first box, so when you do a gig and someone mess by accident with the volume knob it won’t ruin your sound on stage.