What's wrong with Greater Ruin?

[Faerynn]

The epic spell says that it has a cool down time of 2 minutes before the next use.

The cool down timer starts off at 2min and when that runs out it then goes to 2 hours and becomes somewhat erratic. Right now my timer says 22 min left and I last cast it about 30 minutes ago.

The spell should be usable the 3 times per day with a 2 min cool down period between uses.

It seems to me this used to work correctly and only broke a few days ago.

[Luna]

Does it always do this?
We seem to have some kind of phantom bug with cool downs right now.