Level indicator freezes after a while (60D)...
Created originally on Bitbucket by Marsu42
... going out of and into lv again fixes it, it usually happens after being in lv for a while and setting up focus stacking (i.e. going in and out of the ml menu, cycling presets and so on).
Unfortunately I cannot give you an exact way to reproduce it (yet) and will update this bug ticket if I can - but maybe you have an idea what the cause is in any case.