Issues after changing Bolt video to 4K 60fps...

So I got a new Bolt about 2 months ago and it worked great until I got my 4K TV and changed video settings to 4K 60fps and pass through. Almost immediately after that I started experiencing 2 issues that would come and go randomly. The first is when I would go to play a previously recorded program a white snowy screen would appear as soon as I press play. That particular issue could be resolved by powering the unit and no recording was ever affected, any recorded show always played back fine after unit was reset. The second is a 1-2 second delay with a black screen when any remote button is pressed on the remote that controls a Tivo function. When you change a channel, go to Tivo central, and FF/RW for instance. It is impossible to FF a show and stop at the exact spot you want because when you press the button the show starts to FF, the screen goes black and when you press the button again to stop it goes black again at which point the place you wanted to stop has already gone by. It is very frustrating. Sometimes powering the unit will fix this issue and sometimes it wont. These two issues come and go by themselves and in no pattern I have recognized. I have tried changing video back to 1080P automatic to no avail as it seems these problems are permanently set in box now for some reason. When I first set Bolt video to 4K and tested the screen was black as it wasnt processing the signal for some reason. But the Netflix app showed and played 4K content sometimes. And other times maybe 30 mins later Netflix would not show 4K content. I thought this may be a handshake issue however I am still having other problems in normal 1080P mode with just an HD signal which makes me believe there is some kind of a software glitch. I have also kept my eye on my wifi signal which has not gone under 50mbps (normally between 80-130mbps). My router is a Nighthawk and is only about 20 ft from the TV and Tivo. I am using Audioquest 2.0/ 18gbps Cinnamon HDMI with a Sony XBR-65X750D TV on HDMI port 3 which is 2.2 HDCP HDR enabled. Tivo techs say they have seen this issue with some other folks but I am curious if anyone here has seen this and if they were able to resolve it without replacing the box. That is what I am going to be pressing for very shortly if it continues.