I made two dozen tamales, one pork with red chile and one cheese and roasted poblano. It was taking forever for the masa to cook so I pulled out one of the green tamales to check and the cheese (meunster) had turned orange and became the texture of a sponge. The poblano was bitter/sour and the masa was still mushy and tasted stale. The masa from the red tamales is the same and the pork has taken on that flavor as well. What happened???