That's probably it! These sat so long because I was out of town for about 3 weeks during a relative heat wave. I'm sure my house was hovering around 80 degrees during this time. (next time I'll make sure to keep them cool)
It tasted off on bottling day. Perhaps the very heavy banana flavor came from kicking some yeast back into suspension when moving my buckets around? I'll taste one tonight and see if its any good.
This started out as an extract Irish Red kit. I left it in the fermenter for about 10 weeks (was pretty busy). I tasted it about a week before I took this photo, it looked fine and tasted fine. When I was taking the airlock off for that taste the (10 week old) sanitizer water got sucked back...