Rename Folder in World Outliner does not function on Mac

Right-clicking on a folder in the World Outliner and selecting "rename" in the drop down menu is not functioning on Macs running El Capitan or Sierra.

NOTE: The folder can be renamed by selecting, highlighting, and waiting for text to turn blue OR by pressing F2. However, some users report these workarounds are not working.

Not a regression.

1. On a Mac running El Capitan or Sierra
2. Open a Blank Blueprint Third Person Project
3. In the World Outliner, right click to select "Create Folder"
4. Right-click the New Folder and select "Rename"
   RESULT: Dropdown menu collapses without highlighting folder name for renaming
   EXPECTED: folder name to highlight in order to be modified.

na