5.1 files only plays stereo

[mastrella]

I have an Onkyo receiver, but after upgrading to tvOS 16 (I think...), some MKV files with 5.1 sound only plays stereo... Appears multichannel in the receiver, but I noticed that the surround speakers are muted. PrimeVideo or DisneyPlus, such as Netflix the surround sound plays normally. Did anyone went to this same situation? Any thoughts how to config?

[umxprime]

Some developers are aware tvOS 16 broke something related to 5.1 in VLC tvOS and they are investigating the issue in order to fix it as soon as possible