Link does not have passthrough enabled?!?

Hi guys,

I'm getting this error...

            "Link installed on the machine does not have passthrough enabled which is used in the project. Please enable it in Settings > Beta > Passthrough over Meta Quest Link."

It's happening because this code in OVRProjectSetupDeviceTasks is failing...
    private static bool IsPassthroughEnabledOnLink()
    {
        return GetLinkWindowsRegistryValue("PassthroughOverLink");
    }

I'm a little embarrassed to say this, but... I don't have a Beta section in my Settings. 

Where do I find look for this? 

-Chilton