For the last I have been working on a validation formula that was working and for some aparent reason it stopped working. IF () is 'Yes' then I need several fields required, otherwise the fields do not need to be required. I created a panel and added the fields that are / are not required in the panel. I have pulled Grandfathering from named controls, should it instead come from Item Properties? I have been using this: https://ootbtutorials.com/2016/02/16/validating-or-requiring-fields-on-nintex-forms/. but something isn't working now. It was, and now it is not.
Here is the validation rule I have been using: