Heres the deal. May sound confusing but I hope most can understand. Deck A is playing. The volume fader for deck A when up is at max volume, when down is silent. Thats ok. Deck B is playing. The volume fader for deck b when up is at max volume, when down is silent. Thats ok. However, when both Deck A and B’s wolume faders are up, and two tracks are playing, if i go to cut out the volume on deck A, it brings down the volume on Deck B as Well. Im pretty sure this is a mpping issue, i can provide screenshots and further details if needed
Check that the volume faders for Deck A and Deck B is set to their respective decks and just those decks. It sounds like they might be mapped as the Master Fader.