"WhenIdle" doesnt appear on Clear Overlays for Clean HDMI Out

[magic_luke]

Hi,

I have a Canon 60D and just got a Atomos Ninja 2.
As far as I understand, it is possible to get a clean HDMI but lowered to 1620x1080.
I am trying to turn off overlay to get the clean HDMI, but the I can only choose Clear Overlays: Off Or HalfShutter. WhenIdle doesn't appear. How do I fix that?

Thanks!

[magic_luke]

Just downloaded the Nightly Build for the 60D and there it works!