On Mac OSX Open Asset (Command + P) Does not function as Expected

On a Mac running either Yosemite or El Capitan, when you go to open an asset either through the menu: File>Open Asset or Command + P, when the pop-up window appears and you start typing, the window collapses and displays "No Results: ..." regardless of if the asset is present or not.

REGRESSION: This does not occur in UE4.10

1. On a Mac running Yosemite or El Capitan, open any project in UE4.11
2. Press Command +P to bring up Open Asset window
3. Alternatively, go to File>Open Asset to bring up Open Asset window
4. Begin typing to search for asset
   RESULT: Window collapses with "No Results" displayed regardless of whether asset exists or not
   EXPECTED: Typed info to fill text field and yield search results below (as in previous versions of the editor)