[T.G]

That's very bad. Reeks of mildew AND the capas are shattering when you cut them shows complete and total negligence or utter lack of knowledge of the humidor.

There are other ways it can happen, but what I see as the most probable way for heavy mold/mildew odor and dry cigars to occur is that the electronics or fan of the active humidifier have failed and the the water in the tank or the wick is turning into a biology experiment.