Slider Revolution Button Issues

Hello
the learn more button in the slider revolution image on my home page is flickering when viewed through safari. It works fine in other browsers. But, just today it started flickering or struggling to fade in properly. I haven’t changed anything in the settings. The button I am referring to is on all three main images in the slider on the home page at the top of the page. The highest button on the page. See image attached.
http://www.mysmartadvisors.com