Thanks for the reply (and the great plug-in!)
I tried substituting HTML entities for all potentially conflicting characters, but the issue partially remains (the entire 3.2 quiz has now have all > and < substitututed).
As an example, question 7 in the said 3.2 quiz works as intended now (whereas it was broken before), but question 2 remains broken. The only difference I can see between the two is the presence of super/subscripts, but I’m at a loss to explain why these (completed) HTML tags would cause the bug to appear.
