I just installed ver 18.104.22.168 and having problems with setup.
I created a form and attached fields. Then I made a contact us page and just used the [customcontact form=2] code in the post.
Everything seemed fine until I started to stylize the form. I created a new style and applied it to the form. Now only some of the fields are displayed on the contact us page. No major changes to new style from the default - just increased text & textarea field widths.
So not sure why some of the attached fields don't appear on the contact page?