Slider transition problem

Hye there,

I can’t manage to set up the transitions between my slides how i want them to be.
Basically i create a new slider, with 3 slides in it, only pictures.
On the “Select transitions” box i check only “Crossfading”
and “Apply to others” in order to be sure to get this same fading between my images.

My issue is that once all set up, the transitions seems to be totally random, with 2D and 3D.
And i’d like to have only crossfading transitions.

Thanks for the help.