Bug caused by using "skills" field with the profile "info" block

I discovered "Skills" in the available fields for profiles, and I turned them on. It would be cool for our members to be able to input their type of craft in the field! Then I tried to have the skills show up in the profile info block, but when I turned them on in the "view person" form display, suddenly the heading over each category turned into a line of weird code! I turned skills back off again, but it's still displaying the line of weird code.

Any idea how I can get it to go back to normal again?