Using a Panasonic BDT300 to my 6010. I had some 3d blackouts on setup as well. Ended up changing some cabling, incl changing a short 3' to a longer 6', (some discussion as to where 6' was better due to hdmi calibrations), and I also did some reinitialization of my handshake sequences, (powering on in different orders), incl. where I set the darby to off, (no processing) while I redid some handshakes. I'm not having the issue any longer, but I'm not sure if it was a combination of things, or just dumb luck. I do have deep color off now as well.
My darby is setup near my source(s) that are running through a hdmi switch prior to the darby. 1.3 highspeed, 24 awg cables, my run to pj is about 20'. If you have some short cabling in your setup, longer might help, and give the darby (off) during handshakes a try. I think the panasonic/epson and darby might not like to talk to one other.
Anyways I seem to have solved it sending picture from nVidia graphics windows 7.
For those few of you who are using this from nvidia computer, here:
disable deep color for 3d with that app in the settings (tool icon), no install needed
I can now get 3d for first time with darbe on my tw9000 (5010) with deep color off and no black flashes from what I could see in short test period.
Kind of bad you have to fix things like this when buying this thing for 330 dollars total (tax not included). It should be working flawlessly one would think.
Nice to have it working in 3d now aswell though.
I do see HDMI Range option both in player as well as projector. I have set it as 'Normal' in both player and projector to avoid any possibility of extended range creeping in. But that hasn't stopped 3D blackouts.