Search Icon Not Showing on Man Menu – Enfold Version 4.2

I have searched the forums but can’t find a solution; all solutions seem to lean towards going into the settings and checking the box to enable the search, but it is enabled. I tried unchecking then saving again, then checking it again and then re-saving, but nothing.
When the page is loaded, you can see a search box appear on the left of the main menu but then disappear again. We actually want the search icon only and in the right of the menu as we’ve always used it for years.

The site address is http://bskassociates.staging.wpengine.com/ (hosted on WPengine)

Any suggestions would be awesome. Thank you.

Charles