DD+ no passthrough?

I've noticed I only get 2 channel pcm audio to my avr with imported videos when it's a DD+ (EAC3) track vs 5.1 channel passthrough when it's a DD (AC3) audio track. VLC passes the DD+ through fine on the same CCwGTV device. The streamer is connected to the TV and audio is sent to the avr via arc, and the eac3 track is within the arc bandwidth limits. Something that can be fixed?

Are you sure it's playing the correct audio track? Swipe down in the player and check the options.

Yes, checked that. It's the only audio track.