Just stopped working after 2 years, so I bought another one. No sound through headset when plugged in. When disconnected sound on tv is ok
[personal information removed]
I had same problem with Roku Ultra 2019. Went to settings, Audio, and set audio to stereo only, not any of the Dilby options. Earbuds now work from remote.
The fact that it is not in their list of issues and they have had plenty of time to respond to this post indicates they have poor technical support and do not care.