When I upgraded from 3.9.1 to 4.0.2 my tippy titles stopped linking to the page I had the href pointing to. Also, when I moved the dom_tooltip.css to the theme folder, it didn't overwrite the styles. Perhaps it is because I am using a child theme. I don't want to edit the parent theme incase there is an update to that. Is there a workaround for this? For now I just reverted back to 3.9.1 and I overwrote the plugin's dom_tooltip.css file and I have saved it for future updates.