Kerbal Space Program

The header for the "Node Connections Order" dropdown menu (in the mission builder) doesn´t change depending on whether its open or not.
To show this i´ve attached a set of screenshots: screenshots 25 and 26 show the "Options" menu being opened, and how the little yellow triangle next to it changes orientation. Screenshots 27 and 28 show the same for the "Node Connections Order" menu, but the yellow triangle next to it doesn´t change.

Note: Version should be 1.4.1, but that wasn´t an option.