Hi, @kopukza1
Greetings, and welcome to the Roku Community.
We appreciate you for letting us know about your concern with playing Dolby Atmos from your Roku Ultra to your receiver, and we'd like to gather additional information so our team can review this thoroughly. Kindly provide the details below:
- Does the issue only exist with Amazon Prime?
- What Roku OS version and build does your Roku Ultra currently have?
- What is the audio receiver make/model and brand you currently have a setup with the Roku Ultra?
- What is your current settings and setup with your audio?
With more details regarding your concern, our team can review this further and provide a resolution.
Best wishes,
Kash
Takashi O.
Roku Community Moderator