rails fields_for does not render after validation error on nested form

Question

I have a nested form problem. I implemented the nested forms solution form the railscasts 196 & 197. It works if I have no validation errors.

So, form renders pe

Answer 1

I was also having the same problem with this behavior. Since I can't see your model, my guess is that you have :reject_if => :all_blank or some other lambda. This seems to be the culprit, although I don't have a fix. I would leave this as a comment instead of answer, but apparently I don't have enough reputation to do such a thing.