I created an account simply to come and add to the disgust at Roku's response to this issue. Roku, let's make this clear;
1) It is not our TV settings.
2) It is not our HDMI cables.
3) It is not our receivers/processors.
4) IT'S YOU.
Stop telling us the least helpful information possible, and tell us what you're doing to fix it. Otherwise, this is going to be a poor holiday season for you with the number of returns you're about to experience.
FYI, I've had my Roku Ultra since 2016.
Same problem, I have both ultra and streaming stick. Any time line on the fix? Can I sign up for an email notification? I already bought a new hdmi before I read these posts.
Experiencing the identical situation. In my case, not only can I not pass 4KHDR 60Hz, sometimes no signal at all is sent. Seems like all of my apps are also much slower to load. Very very frustrating.
Thanks for continuing to share your reports here. We are continuing to investigate these reports and work toward further resolution.
If you haven't already, please include your TV's specific make/model, and any A/V receiver make/model that you are using when reporting an issue. This type of information is helpful for our team as they continue to look into these reports. Generating an issue report tracker ID whenever you observe an issue occurring by pressing the Home button 5 times quickly, followed by the Back button 5 times quickly on your remote is also a big help.
We'll continue to provide any further updates we hear as we know more. In the meantime, as a temporary workaround, you may try setting your display type to 4K 30 Hz / 4K HDR 30Hz in Settings>Display type to see if this helps. Please feel free to reach out via private message if you have any other questions or additional details to share.