Audio mapping mismatch when creating Proxies in Premiere

When I import my sync’d multicam sequence into Premiere CC via XML and try to create proxies of the “Original Media” clips they don’t attach, when I try to attach them manually I get this error:

“Proxy media and full resolution media must have matching audio channels”

I try to modify the audio mapping of the clips, but to no avail.  The only thing that works is for me to manually replace each clip with the camera original clip and then linking to the proxy, which works but involves a lot of extra time as you can’t replace a whole bin full of clips…just one at a time…is there something I’m missing in the settings that will create the clips in the XML export that match the mapping of the original clips?