Forum:Changes don't persist visibly?

[Update: I've deleted and recreated the Introduction page with the exact same source, and the problem is fixed. Sorry for killing the repro case I had! Still curious if the below is a known bug.] Hi,

I just created my Wikia yesterday, at http://qmfordummies.wikia.com/wiki/Introduction

The equations on the bottom of the page aren't being visually persisted. If you click "edit this page," and then immediately hit "save," the equations (and subsequent text) appear correctly. But anyone opening the page for the first time in the browser will get junk.

Is this a known bug?

Thanks!

Aditya