Hello,
Seems this is bug of the new version of the Revolution slider because it changes the bullets while editing https://gyazo.com/fdb009e6c26be43fee9171ea143c4c20 but does not apply changes on the preview or frontend http://prntscr.com/ok0bge
We have asked plugin author about this issue https://codecanyon.net/item/slider-revolution-responsive-wordpress-plugin/2751380/comments?page=989&filter=all#comment_22523975 and waiting for reply.
Regards