Kerbal Space Program

What happens: closing space center flag pole with esc dosent trigger code to re-allow clicking of buildings(and their buttons appearing) in adition to the back button staying grayed out.

How to reproduce:
start or open a save of any type.
open flag selection gui from flagpole.
hit esc.
window will close but not trigger what allows interaction with blocked actions.

Notes:
tested in a fresh steam install with dlc installed.
tested in both career and sandbox plus an existing game.

My suspicion and comment:
my best guess of what is happening is that the function is only linked to the done and cancel buttons.
might be fixed by: changing this to a window closed event(if you have those), adding the esc press event to trigger it while window is open, or just disabling esc from closing the window.

i have no idea which is the easiest option as i don't know what framework has been setup but sounds like it shouldn't be too hard to patch:)