Separating and Mapping Audio Channels in Premiere CC Multi-Camera Sequence I'm having a lot of trouble getting my audio to work properly in multi-camera sequences.

I have just two sources, both video with a single synced stereo track. The stereo tracks for each source have been split into two mono channels (each channel is a different mono microphone.)

After creating the multi-camera sequence "Dr Chen pt.1 Multi-Cam", everything seems fine. Everything is synchronized and each of the 4 audio tracks holds a different microphone recording.

But when I create a new target sequence from the multi-camera sequence (for editing) it seems that the first two audio tracks are identical and the last two are missing. Furthermore, the first two sound like the sum of all clips from the multi-camera sequence. But I've made sure each track in both sequences is mono and mapped to a different audio channel.

The audio channel mapping is confusing to me, but I don't know what I'm doing wrong. Any ideas?

Here are screenshots of the audio channel mapping for the multi-cam sequence and the target sequence.
Premiere Pro is definitely not a digital audio workstation.  Its treatment of audio is primitive at best.  I believe its paradigm (which I think is screwy, but that's my opinion) is that a multicam clip conveys one of two types of audio: the preview channel track (which you have selected as Channel 1) or audio-follows-video, which means each cut you make, the audio switches to the one channel allocated for that clip.

I know you don't want either, but I don't think there's a third way.

So, use Channel 1 as your reference clip, copy and align the audio tracks you want to deal with to the sequence containing the multicam clip, and do all your audio edit processing there, separately from your camera changes.  Good luck!