Hi,
I deal with a lot of math in my wiki and noticed that implication symbol rendering is somewhat broken right now.
For example this:
<math>A \implies B</math>
... gets rendered like this.
As you can see, the implication symbol looks like it is composed of 2 glyphs with one of them having mismatched scaling.
Although I am not 100% sure what is going on here, it looks like this somewhat similar issue on stackexchange might have some useful info on this problem.