Layer Slider And Vimeo Video Information
There are a few things regarding the LayerSlider and Vimeo videos that you need to know.
1. Vimeo Plus / Vimeo Pro videos have problems working with LayerSlider. Their API does not allow to retrieve information about those videos. Therefor you should put your video in a regular Vimeo account
2. You need more than one slide in the slider for the video API to kick in and fetch the image from their API to show on the slide. So if you only have one slide and it contains a Vimeo video, then the thumbnail will not show on the video, it will just be blank with a play button.