[Legacy App] Screensaver slideshow stops after displaying first image [ET 3.0.20/21]

[scottpro 28]

When enabling the "Settings->General->Screensaver" to "Backdrop Screen Saver", after 5 minutes of delay the Screensaver starts.  It presents a random movie backdrop and doesn't cycle.  The option "Photo slideshow time per slide" is set to "10 seconds".  Also, the movie title and date no longer appear on the backdrop.  This works fine with app-version "26.0.21" and is broken in app-version "26.0.22".