WO5 - Windows can see Blackmagic input, Watchout can't. Where have I gone wrong?

[syngh]

Hi folks,

 

Running HDMI / 1080p / 30fps into a Blackmagic Decklink Mini, on my display machine.

 

Using any other software (Blackmagic, Resolume etc) I can see the input without problem.

 

I have the input defined as Input 1 on my display machine.

 

...but when I go to insert the Live Video object into WO5, it doesn't see any signal on the input, and I get an error message "Rendering error: -2147220969; [Facility 32772]; Live Video "computername" of Media List".

 

What have I done wrong?

 

Thanks!