I have the same issue.
SPOTIFY, at least recognize the problem and issue a statement about it. Can you fix it? Is it a problem with vendor, is it an issue of Onkyo software or what exactly? Is there any workaround?
Or your policy is just to ignore this?
(And please do not ask me how I measure the quality. It is more than clear that this is an issue.)I have Onkyo TX-8270