I have these issues with testimonials. I own the full version:
1) Testimonials: The text of the testimonial does not appear on the homepage:
2) Testimonials: When I view testimonials on a separate page using the shortcode, there’s no way for the user to click to “see more” of the testimonial. So, testimonials are forced to be unreasonably short.
After adding the testimonial please follow the below steps for homepage testimonial
Appearance –> Customize –> Home Sections –> Testimonials Section
here you can set easily which testimonial you want on homepage