I "upgraded" from a Premiere+ (maybe 3 years old?) to a 2020 Ultra , because - DolbyVision.. Absolutely nothing else was changed, just a plug and play swap. Premiere+ worked just fine. Ultra gets HDCP 020 errors several times per hour (does recover after about 10 seconds of a notification screen). Happens even when the content is paused, and not DolbyVision. Happens on any "channel." Extremely annoying, and definitely customer hostile - pirates know how to get around copy protection, but I, paying for content, have to deal with this when simply watching.
Roku, get your sh*t together and fix it. I'm happy with the UI, which is why I stuck with you, but I'll soon be exploring alternatives, because your top-of-the-line box simply isn't ready for Prime Time.