I recorded a video demonstrating the issue: https://youtu.be/k3TtFLGLgpM
It happens casting from both iOS and Chrome. It only happens for YouTube Music - not regular YouTube as far as I can tell.
Any chance this could be filed as a bug to the developers?
Hey there Oliverodaa,
I apologize about the late response on this issue, thank you for being patient! That is a strange issue, I don't have a Chromecast Ultra, so I am unable to re-create it. If you have the time, would you be able to submit feedback via the Google Home app to let Google know about this? While Google won't respond directly back to you, this is the best way to report any bugs/issues that you come across.
I look forward to your response, and if you have any other questions or concerns for me, please let me know!