Fixed in version 5.107:

YouTube downloader has been updated and improved.
Theme manager now works correctly with the default song theme.
PowerPoint auto change is disabled during preview loading.

Minor fixes

Improved red border on PPT animation previews
Stopped crash on attempting to play mkv video files
Playlist help for menu items fixed
Monitor changes are now detected
Sample song file improved
mp3 files can be dropped into the Playlist
webp pictures can be dropped into the Playlist and used in folder slide shows.

New:

Bible verse selection can be edited directly from the playlist item, (right click menu)
Still backgrounds are included in the installation file