Ok, I have figured the issue… (I think).
My search component is in a header. The header was not “Sticky”. I changed the header to Sticky and it did not help. Then I dragged my search component out of the header and into the page itself. This fixed the problem (except that I want it in the header). Realizing it was a header issue I decided to focus on that. I dragged the search component back into the header not expecting anything. Suddenly it was working. I played around with it a little bit more and I am fairly certain that this issue is:
Search component in a header that is not sticky does not render suggestions over an inline frame. It seems that when you switch to Sticky, you need to remove the search component and add it back it to fix the issue.
