# Edit lead to maths not being displayed correctly, but rollback doesn't help

I made a slight edit to this answer, but then some of the maths (which I did not edit) wasn't displaying correctly, so I rolled back the edit. However, the sections that weren't displaying properly did not return to their original state.

Is it just me, or does the answer not display properly? If it doesn't display properly, why has my edit had this effect?

The problem was a number of extra backslashes. There were two instead of one for each \{ and triple instead of double at the ends of some lines \\. It all displays fine now.