Since upgrading to 15.10 getting audio dropouts on playbar+sub+play one surrounds.
This is on tv audio, however it has been dropping in and out when grouping with other devices also, these are far more severe drops where audio will not play for ten seconds then it will join again.
have taken diagnostics of tv audio issues1987513514
also to note, can have the audio issues replicated by pressing volume up or volume down on remote/iOS app