OP-XY routing issue: Multi-Out + External Mic Input simultaneously

Hi there,

I’m working on my live setup with an Op-Xy and couldn’t find a solution for this issue yet.

I’d like to route Instruments 3-5 (Bass) to the Multiout only (not the MainOut). At the same time I’m using the external Input with a Microphone to add effects with the Op-Xy and send that signal to the Main Out. Both things work individually but not together. As soon as I’m activating the Microphone (first knob) in auxiliary mode track5, the Bass also goes through the main out as well.

Maybe you can help me?

Thank you.