Shield TV Kodi Passthrough Issues

Would appreciate any assistance as I am having an issue with only getting PCM on my AVR using Kodi 17.1

I have read through quite a few threads and tried every setting but still having issues. I am using a Sony STRZA1000ES receiver. Shield TV purchased in 2017. Samsung KS 8000 TV

Set up is: ShieldTV -> AVR (HDMI) -> One Connect Box (HDMI)(ARC) -> Samsung KS8000

AVR
Audio Out – AMP Only

Player / Video
Sync playback to display – off

System / Audio
Audio Output Device – ANDRIOD, AUDIOTRACK
Number of channels – 2.0 (Shouldn’t matter since I am allowing passthrough. I have tried setting at 5.1 also with no change)
Allow passthrough – on
Dolby Digital (AC3) capable Receiver – on
-Enable Dolby Digital (AC3) transcoding – on
DTS capable receiver – on
TrueHD capable receiver – on
DTS-HD capable receiver – on

Only getting PCM when trying to stream a movie or show using 17.1

I thank you for your time and help.
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