Knowing what I know now, comming from a perfect working system (older Yamaha and Sony TV), I would have bought it a few months later, after the big update. I bought the Yamaha 4VA and the LG CX at the same time two weeks ago for a whole makeover. Awesome futures but a few bugs at the moment. Still happy with the makeover, don't get me wrong! ;-)I am considering this AVR, but what you have reported above sounds like a showstopper. Is your issue solved somehow? I plan to use all inbuilt TV apps on my LG C9 as the primary source and use eArc to connect back to AVR.
So if people have solutions for the mentioned problems, let us know.