Were those photos taken indoors? Are you growing them inside? They look very healthy.
(well except for those problem leaves and the bean)
I'm wondering if these might be signs of mites or other sucking insects like white flies maybe (thrips? i can never tell about those.). OR, depending on the size of the container, they might have reached the limit of the support the container can provide.
You didn't mention where you live -- are you in a cold area? That floor level heater (I think?) is also making me wonder about the kind of heating if any you are using -- do you have gas heat? Or dry air will promote mite activity, and stress the plant, the lesions on the bean in the last photo is not familiar.
In my area, we just had first frost and stinkbugs will be trying to move in. Every winter, there are stinkbugs in the house that think my indoor plants are terrific source of winter snacks. Some of them chew the leaves but most of them are -lant juice suckers.
I would rule out these pest and environmental factors before focusing on possible disease.