I have a global content download form which is set up with progressive profiling fields. The follow up page is a separate global Thank You landing page, and I have set it so that the form (as opposed to custom HTML) will show if known visitor.
The form is used on multiple content landing pages. I test on landing page 1 that uses the form, and see that the non-progressive profiling fields pop up for me. I fill these out and when I submit the form, everything works as expected. I go to landing page 2 that uses the same form, and expect to see pre-filled fields from having filled them out on landing page 1, plus additional progressive profiling fields. Unfortunately, I see the same fields without pre-filled data, and I don't see further progressive profiling fields.
What do I need to do to get progressive profiling to work?