In the newest version of Proclaim (1.26.0.0533) the video background for songs flashes to black then restarts when the slide is advanced. The background will continuously play and loop through a song if the Fade effect is on, but we don't use transitional effects in songs.
Just to be clear, the text is fine and advances without problem, the background stops, goes to black, and then starts over on the next slide in the song.
Worked on Sunday, broke this morning with the new update.
Windows 8.1 Enterprise
GPU: GeForce GT 730
CPU: AMD FX 6300
8GB Ram