Spent the last couple of hours cleaning up the code for the entire site. While there are some css work I need to do for display purposes, the validation is clean now except for the items related to the embed tag.
I'm still getting the same problem. I haven't applied labels to all the input fields. However, I did so for the first column of text fields in the form as well as ll the input fields of the bottom section of the form. Still nothing.
So, now I'm thinking it might be a UE4 issue rather than a coding issue. I will upload the new index file for your review in case you need it.