The rendering error with LaTeX has been resolved (Friday 29th May) and all new LaTeX/Maths Editor formulas will now display properly.
Any items users created in the past week while the problem was present, should be corrected by editing the items and submiting them without making changes, this should correct how the formula displays. If problems persist then it may be necessary to recreate the formula.
We appoligise for any inconvenience this has caused.
We will continue to monitor this.