Has anyone else noticed issues with MathJax in the StackExchange app? I'm aware the comments and titles don't render MathJax automatically, but I've also seen questions where certain math expressions lead to error messages in questions. The most recent and frequent example I see not rendering is
\dfrac (for a recent example, see MaxW's answer in the edit history).
Edit: To clarify, I'm seeing these errors for the Stack Exchange Android App Version 1.0.89