Slide duration after applying style/theme

[SeismicGuy]

It has been a while since creating a vacation slideshow so I may have asked this before but just forgot the answer.  If I place slides in the slideview line or timeline and set the duration of each to be some consistent number (e.g., 8 seconds) but then apply something like the Ken Burns theme to some or all of the slides the duration of each changes.  This works sometimes but sometimes not so I need to go in and tweak the durations on the slides.  I assume the duration change is by intent depending on the style/theme being applied, but is there any way to lock the durations?

[digartal]

Hello

I am by no means an expert or Advanced User as I tend to do the same thing all the time and omly make AV's of my images.

One thing that I found was that if I deleted the image from the "Timeline" tab, the slide time was altered automatically. If you deleted it from the "Slides" tab and had unlinked, you could manually adjust the slide and audio timing.

Hope this helps. 

Mark