Text Form Fields do not export with inDesign CC 2018 14.0
Form Fields do not export at all in the PDF when exported in the current version of inDesign. I am using the same exact settings as I did before I updated, and links DO work. Form fields just do not appear.
1) Make boxes where fields are required (in this case, on its own layer, which is visible and active)
2) Using the Buttons and Forms panel, convert them to text boxes
3) Export to PDF, making sure that the boxes for exporting interactive elements are checked, and the dropdown says to include appearance
Resulting PDF does not have text fields.
It looks like you are exporting to a Print PDF.
For the Form Fields to work, you should choose Adobe PDF (Interactive) Format instead.
Hope this helps.
Charlotte Irrgang commented
May I suggest that you add a link to exporting this way to the "working with fields" help document so people who have been doing it the old way forever and are trying to find out how to fix it (and new people too) can discover the new way more easily?