XP Pro sp.3 32 bit OS, PowerDirectorDeluxe 12.0.2230.0, SR VDE131028-01/ used only jpg image files and mp4 (sound added after problem occurrence).

My trouble is with the display of the simple slideshow storyboard view, vs timeline. I loaded folders of images and deleted many of the pics in edit mode but at some point the program decided to keep two images that I'd tried to delete from my content display. I worked around the problem with a drop down menu right click on the timeline: Display Individual Images. Well, the transitions are GONE now. There's undo commands that I can try to get the transitiions back again from the "normal" slideshow selection I'd started with but I'll be faced with the same problem of removing unwanted images and starting over again!