iTunes 12.3.1.23 video playback not working
I recently updates to OSX Yosemite 10.10.5 and iTunes 12.3.1.23 on my MacBook. My iTunes will now play songs, but video playback for TV shows/movies I've purchased through the iTunes store is not working. The video player remains black, and there is no sound. The files have been downloaded to my MacBook, and are not playing through iCloud. Thoughts or suggestions?
I've tried closing iTunes and restarting the computer.
MacBook (Retina, 12-inch, Early 2015), OS X Yosemite (10.10.5), iTunes 12.3.1.23