Hey @ShutterBug ! It is certainly odd that one device’s video is operating just fine while another is not. I recommend power cycling the Cam by removing the battery and reinserting it. If you only have one battery, please ensure it is in slot 1.
If video issues persist, try resetting the Spotlight Cam by holding down the setup button for 20 seconds. This will require a setup to reconnect. Please let me know if this works for you.