** Dolby Vision Blu-Ray on Oppo 4K not passing through Lyngdorf MP-50 to Sony Z9D TV **

Anyone else experience this:

I tested multiple Dolby Vision 4K Movies with the Oppo 203 connected through the MP-50 via HDMI. However, Dolby Vision is not being rendered on the TV.  

I unplugged the Oppo 203 and connected it directly the Sony TV, and Dolby Vision worked perfectly when the MP-50 is not in the path.  

HAS ANYONE ELSE HAD THIS ISSUE? Any way to fix this? MP-50 Setup Setting??