In revslider every slider have unique data data-index.. We check your code you copy previous slide code but does’t change the data-index.We highlight this issue in attachment please see attachment. In your code rs-1687 uses please replace it with rs-1690 and then check after that tell us is your issue fixed or not.
Every time when you copy slide code must change data-index.
I added a 3rd main slider by copying the first slider code and adding it after the 2nd slider code and I changed the the images to image-3.jpg. The image comes up, but the text does not. Any help would be greatly appreciated.