Hover description showing html instead of box

On the same event, the Individual registration shows the description for custom fields on hover as a string of html (image 1), while the Group registration shows the box properly. How do I fix this? 
(Sorry for the bad pictures, they would not screen shot so I had to photo them)

Melissa

Hi Melissa

Please send me link to the page which is having the issue, I will try to check to see why it happens and get it sorted

Tuan