I'm not sure if this is a bug or not, but I wanted to confirm it one way or another. When I select the first level of Beast's corpse explosion skill, I get lots and lots of explosions. When I upgrade it to the second level which introduces the plague, then corpses no longer explode (actually there is a really rare and odd explosion here and there). It's almost as if though mobs that are affected by the plague cannot explode. Is this intentional?