Our SQ5 will not control the gain on local inputs, it will make a slight gain increase when the know is rotated fully to the last few percent. However, it works just fine on stage boxes of the S-Link. For me, this rules out a faulty gain knob as it works for remote stage boxes. I have done firmware updates, hard resets and even gone through menus line by line comparing it to our SQ7 which works just fine. Is this a known fault or is it a menu option that we have inadvertently applied?
We need a bit more information. A showfile or some screenshots would be appreciated.