Hi MightyMikey!
welcome to the forum and CONGRATULATIONS on the purchase of the Qu32!
so, you are getting effects in mix 1&2 but not in the other mixes,,,???
You need to choose mix three for instance,,, blue mix button on the right-hand side of the console,
then on the left side of the console, tap the top layer button which will allow you to turn up the effects in that mix.
As long as you have first selected the mix you want to adjust, this is how you turn up the effect return faders for that mix.
I used mix three as an example but the rest are the same.
I am guessing that there is still something wrong if you are able to get the effects returned into the first two mixes but not of the others.
hmmmm????