"Typeahead" search results from the "How can we help you" search box does not search for the selected result from the dropdown results. Instead the typeahead results disappears and the search box stays on the same page.
Release or Environment
1. Search source is broken.
2. There can be many reasons for search to be broken, one of the reasons can be, page field of the search source is empty, it does not have any value.
Add appropriate value to the to the page field of affected search source.