@luke One thing to check is the name of the slideshow you are loading. It looks like it is being entered as “front page”. If you have a slideshow called “Front Page”, the slug should be “front-page”. Confirm that you have that correct and update it if need be.
There are currently two slides and it should be rotating. This is usually a conflict with another plugin. I would try disabling your other plugins and trying the slideshow. If it works, enable your other plugins one-by-one until it breaks and you will have your culprit.