Not really. All I need to know is that it’s broken because of an update (which is certain), there are others having the same issue after the same update (visible in the forums) and it’s not being fixed. I don’t have time to dig into the code myself so I replaced it with a similar plug-in that does work. Not very satisfying, perhaps, but practical.
It really makes little difference. The forms worked. There were updates. The forms no longer work. Nothing else changed. CSS is not the reason the forms no longer work.