[Plugin: Meteor Slides] Only 2 out of my 4 slides are displaying?

In my settings I have my slide quantity set to 4, and have the 4 slides uploaded and their image set as featured image… but when I view my homepage only 2 out of my 4 slides show for some reason?

My site is http://www.mochodesigns.co.uk

Thanks!

http://wordpress.org/extend/plugins/meteor-slides/