I bought mine form DCS Eagle Dynamics 2 weeks ago (not steam!!!)
First i entered the game after the Update i saw that
I exited the game Deleted the 5 Modules From the new GUI And installed them again from the new gui
It removed the Flaming Cliffs 3 Authorization Will be disabled , But the main game interface still shows me that i can install the Module
But i can still see in the new GUi that i have 5 more modules to install while When i click on it he Shows me an empty screen