I just posted a question on the Mathematics site that required the use of set brackets; however I could not get them to work as usual on the 'Ask a public question' page. On their own in math mode, the set brackets would not appear at all but the rest of the characters appeared formatted normally; when combined with \left and \right, or \Bigl and \Bigr, all the formatting would disappear and the characters would be surrounded by a rectangular box. Once the question was posted everything worked as usual, but it was annoying not to be able to see the proper formatting before posting.
Here's a screenshot of an example of what I was seeing:
It seems odd that other Mathjax features work normally on the 'Ask a public question' page but the above don't; is that just a quirk of this page? Are there other features of Mathjax that don't work on this page?