Using Tooltips 1.4.2 with Confluence server 6.7.2.
I have older tooltips with text that includes "<" and ">" characters, and those tooltips show up correctly. But if I try to edit them, or if I create a new tooltip, if either of those characters is used, then when I publish the page, both the tooltip and the link disappear (i.e. when I go to edit the page again, the text that the tooltip was linked to no longer has a link).