[17.3] Audio Stream Undetermined? (Nvidia Shield)

Hi,
Does anyone else have this issue?

Im using Nvidia Shield with a Yamaha RX-V681 reciever
I had no audio issues with Kodi 16

I have various audio types: DD5.1 / DTS / DTS HD MA / Atmos

When played they are just outputting as “PCM” and only 2.1

Passthrough is enabled in settings and all codecs

Any help appreciated