I've added an Intent that streams a podcast episode related to my skill in my latest update. I've user tested (and had other developers test it), and everyone agrees that there is no real/noticeable issue with volume variance. I feel a little stuck at this point after 2 rejections for the same reason, and there's not much I can do to change a stream that is external to my skill/code.
Is there any way to validate what specific complaint the testers are having with the update, or a precedent or reasoning I can cite? Given that this is the only new feature with audio, I can only assume it is the target of the rejection, but it would be great to verify that I'm chasing the right thing :).