I'm also having the exact same issue with my Onkyo HT-RC560.  It also happens to be on Christmas Radio... on Christmas!  😥😓😭

How quickly can I have my device reset?

I've done some more testing and believe it has something to do with the new "Curated Stations" and possibly the newer "modes" that have been added.  Every other station I try works fine, but any stations that is "Curated" with these new modes totally hangs my Onkyo HT-RC560.