Adding vCam to vMix Error

When I try to add vCam to vMix as an input/source it tells me that the “Capture Resolution is not supported by this device.” These are listed as supported resolutions:
1280x720 NTSC 30p RGB
640x360 NTSC 30p RGB
640x480 NTSC 30p RGB
1280x720 NTSC 30p RGB
640x360 NTSC 30p RGB
640x480 NTSC 30p RGB

Hi! We’ll need to get some more details about that. If you go to Help > About in the VCam window: Which version number are you currently running?