Hi Justone. i used sony x9000h with Samsung q950t, for more than a month now. So far I have no issues at all. Just make sure your soundbar is using the latest firmware.

get dolby atmos all the time using apple tv 

using earc connection , firestick and nvidia shield.

happy user here... clap clap.

if you have a frequent drop out issues, then you might need to change the channel of your rear speakers. you might got interference that causing dropout.