@Tommy Byrnes So I know, what the problem is. I need to find a setting, where RME Totalmix will only play if I route it through the input in Element. So I can control the volume and loundness and mute the signal in Element. That is where the feedback issue is coming from. So I probably have to create some cues or similar. Or I don't know. I have been using totalmix and loopback only for tracking purpose and it worked great. However when setting it up in Element I have these feedback phase issues. As alternative there is only VoicemeterPotato, which offers a loopback function as already Totalmix does. But I would like to avoid that.