Soliloquy Testimonial Slider No Height

The new soliloquy testimonial slider is put above the existing testimonial slider just below the fold on the homepage.

For some reason the slider isn’t showing the content correctly, it has no height and appears only as a line.

All the content is there in the code and I can’t figure out why it is not showing.

The page I need help with: [log in to see the link]