Kerbal Space Program

What happens: Clicking "space center" or "recover vessel" while the "plant flag" dialog is open freezes the user interface.

• EVA your kerbal (the launch pad is OK)
• Plant a flag
• Wait for the game to prompt you for the flag's name
• Instead of entering a name, click either "space center" or "recover vessel" at the top of the screen
• The game switches to the space center, but the mouse and keyboard no longer work properly. Although it is possible to quit to main menu with the "Esc" key, the main menu is unusable.