Search for Articles on reply not working?

Running 4.0.16. Just poking around to see what changes there are. When I
go to reply to a ticket, I am trying to search for articles and nothing
pops up.

I recall in my last version - 4.0.6 – there was a drop down containing all
my articles. Now I can’t seem to apply an article in my reply. Am I
missing something?
Max McGrath
Network Administrator
Carthage College