Yep, seems to be pretty common this season. Black fungus in the pod. I've had two waves of pod set this season and the first pods of both waves have been riddled with black mold. After about the first couple of harvests, everything returns back to normal. And the purpling on the top of the pod is basically a suntan. It's the pod's way of protecting itself from the UV rays. It's probably getting a lot of direct sunlight. Nothing to worry about there.