I have changed from a HDMI connected media box to a NAS, a WD mirror.
My old media box was working fine (WD elements play) but I wanted the extra capabilities and HD size increase.
3D films now exhibit white flashing continually on my projector when coming from the NAS.
I have a WD mirror, connector via a TP link gigabit switch to my panasonic BD160 bluray player which feeds to my AV amp (Yamaha rx-v3067) via HDMI.
From my Av amp to my panasonic ea7000 projector again via HDMI.
The bluray player and av amp are connected to network.
The same film without 3D activated on projector plays fine (though in Side By Side format).
A 3D film on bluray from same player plays fine on the projector.
I am using cat 5e cables and are all short runs.
The projector is on a longer 8m or 10 m HDMI cable, this has worked fine for many years with everything.
The control of the NAS is done via the network functions of the bluray player.
Suggestions please, thanks