songshow plus worship presentation software
Source video does not appear on screen when using the DeckLink plug-in
When using the DeckLink Plug-in, text is shown on screen but the source video is not. The ProKey Systems typically have the DeckLink setup.
Using a video source format that does not match the selected resolution mode setting will cause this.
Make sure that the video resolutions/formats are matched throughout the processing chain. You should be able to verify this using the DeckLink LiveKey utility.
Using a background setting other than "none" in all applicable areas will cause this.
Make sure that the background settings are all set to "none" as indicated in the DeckLink setup procedure. Any background setting other than this will hide the source video with a different background.