[Bug] Freight Drones break mouse cursor controls

[Utsuho Reiuji]

I tested this a few times and was able to repeat it every time: On a TL I had two freight drones. I eject one and open it's order window. Now when selecting "Manual Trade..." an empty windows opens and the mouse curser will from then on be permanently broken. If the game is saved and reloaded, the bug persists. It also remains bugged when quitting the game entirely. The only way to fix it is to load a savegame from before triggering the bug.