We have a rather lengthy form, ~50 pages.   When it is saved into the repository as a PDF,  single line inputs are shown as a gray input area and the text is cutoff.

However creating a small test form, single line inputs display all the text when saved as a PDF and not on a gray line:

Why the difference?

The two single lines are setup identical on each form.
My test form mimics the lengthy form, javascript, css, sections, pagination, , signature fields, etc.  (No javascript ,css  or field rule is applied to either of the single line inputs.)

~ Andrew