Anyone else notice OUDK is transparent?

Yeah, i have noticed that on all builds i have tried, its not noticeable in the rift but on monitor it is visible.

It depends on your background I suppose. Mine is black and white (one or the other, no gray) so it has really high contrast and peaks through constantly. I could probably remedy this for now by setting the background to all black or something...

I'm using RC2 on Windows 8 with an NVidia GTX card and I am not seeing any transparency. I tried seeing if it was there with the content browser, material window, main window, or play in engine mode - nothing.

Interesting... I don't see this when taking a screenshot with Fraps. Also, it seems to get worse, the longer I leave my Rift on.... Perhaps this is the legendary screen burn-in? I'm not familiar with the phenomena, but it sounds like it happens when you leave a static image on the screen. Thing is, I only turn the Rift on about 20 sec before I open up the UDK... and I have only noticed this in the last two days.

Can you try some other demos (Unity, Tuscany, etc.) and see if you still experience the issue?

Its regardless of the demo, the screen is getting burn-in from my wallpaper in less than a minute, so I have changed my wallpaper to solid black. It doesn't seem to get burn-in during any demos, or if it does, not to a degree that I can notice.

Can you take a video of the problem and send it to support@oculus.com?