I am testing 17-beta 7 on a S912 box, connect to a sony sound bar using HDMI, and set the number of channels to 5.1.
When using a bluetooth headphone (LG hbs-810)and the video have 5.1 sound track it must set the number of audio channels back to 2.0, otherwise all audio will keep playing on the soundbar. It will take effect immediately when switching between 2.0 and 5.1. Tried Dolby 5.1 and acc 5.1 both have this problem.
Video have 2.0 sound track are not affected.
p.s. I am new to kodi, I don’t know this is a bug of the S912 box, a limitation, or a bug of kodi 17 beta.