Hey, acconstantinesc.
Thanks for reaching out!
Just a heads up, the Roku Express 4K+ can play HDR content but doesn’t support Dolby Vision. However, it should also show HDR on the content that you're streaming.
Can you share some more content that's having the problem? That'll help us look into it more.
Please keep us posted!
Roku Community Team
This is clearly an issue of Roku stick not communicating correctly with the TV, and I think it's on Roku side. I did some more testing using a Fire TV stick 4k max. I plugged the Fire TV stick in the same HDMI port as Roku and I didn't experience any of the issues I experienced with Roku. How do you explain that? Plus, Roku gives me troubles only on DV content. What did you change in the latest update?
