I bought a Mackie ProFx 10 v3 new at a local store a few months ago. Everything seemed golden, but now when I have my Volca Sample playing a drum loop, and also have my Volca Keys playing a melody, then Mute the Volca Keys, I still hear it, unless I also Mute the Volca Sample. This happens no matter which channel I plug either instrument into. changing FX levels on the mixer, turning all the knobs on it down to zero and back again dosen't seem to have any effect. This issue seems to have just started yesterday. Any ideas?
