I am also having an issue here. I have a hyperlink in my category description, and I would like to it open in the new tab. I have checked the box in my user settings to open external links in a new tab, but its not working when the link is in a description. Is this a bug?
https://www.fellowshipforums.com/c/past-exams/fall-2017
See the “Timer” Hyperlink for an example.