from OP at plexapp.com forum
….Netflix won't output any audio when 5.1 is turned on….!!!!!!
from other poster
….it might be a dropped frame instead of a segment…!!!
I wouldn’t yet call it a bug based on the above users comments!
- Netflix 5.1DD+ & Amazon 5.1DD audio have no cut-off - your AVR is certainly capable of both, you may try it.
- Your issue w/Plex may due to been a beta version!
Anyway, if 720p works fine, You could to set Roku to 1080p, set Yamaha Video Processing to OFF if it was set to ON.
From on screen Menu > Setup > Video >Processing >OFF & try it again.
See Tips link ---> # 5 AV receivers: Video.