Ubuntu and Debian no audio on front right channel

Hi guys can you please check the ubuntu and debian images only the front left is outputting in HDMI the front right it is mute, i already messed with a lot of things but it seems that is something low level regarding audio topology that i can’t fix by myself.

We are currently syncing this issue internally.

We have verified that both left and right channels produce audio (desktop version: clicking the left/right channel buttons in Sound Settings works; playing audio in a browser causes both speakers to vibrate).
Could you please share the exact steps you use for testing?
Additionally, have you tried using a different monitor for the test?

Desktop version click the right / left channels button in sound settings only audio left outputs. Browser same thing.
Did not tested with another monitor, maybe is a monitor issue i will test and report.
I’m testing audio via Output HDMI, using a LG TV.