Slideshow in iPhoto - changing the theme for various slides to eliminate KB effect - doesn't "hold" through playback
I have made a couple of slideshows using iPhoto. I used the Ken Burns effect as a theme (using my own music). Many of the slides would not suit the KB effect (African animals) so I used the settings - change this slide to eliminate the KB effect for that slide - I also lengthened the duration that the slide played. I found that the effect I wanted for the slides would be correct for the Preview, but then it would revert to the KB effect upon playing the slideshow. Also, if I happened to move a slide to a different position, all the changes would have gone and I would have to repeat the exercise again! Very time-consuming and frustrating. Why won't the slides keep "their" instructions? Also, I have had iPhoto crash a few times while I am making changes.
Can anyone help me sort this out? I am presently exporting the latest slideshow to iTunes (and I've got my fingers crossed that all the changes I want are there)
iMac (27-inch Mid 2010), OS X Mavericks (10.9.2)