The fleshy sections (leaflets?) lose their crispness (go limp) and fall off. I have not been able to detect any insects. There are some blight like spots on some plants but not usually on the dropped plant parts.
Should I just throw out the plants and start over again? I have had these plants for many years. I tried repotting them, but this did not seem to make a difference. I did put them outdoors for a couple of months. I recently repotted a couple of them, pruned them back and have brought them back into the house. I will need to decide what to do with the remaining plants as a killing frost will probably happen within the next couple of weeks.
Note: the only new plant in the house was an orchid plant back in May. . . could the problem be related to that plant?