I can't filter the list from your link, it's loading endless (can't see any error in JS console or network response, response is just empty).
Ajaxfied list + required filter + PDF is working on my site.
Although there are some strange effects with ajaxfied list filtering:
Without required filtering "Clear filter" is clearing the filter values but still shows the filtered list.
With required filtering "Clear filters" is clearing filters and showing "no data" instead of "please select at least one filter.."
ok, now your list load has finished - after 9.9 minutes!! (filtered on
?????)
Yes, PDF is showing only "Please select at least one filter"
What is your menu setting fabrik options/reset filters?
Is this a site migrated from Fabrik3.0.9?