Even if I have a car that has all the icons, like the new BMW, when I first load the UI, the car appears under that tarp. To fix the issue, all I've had to do was click to the car selection screen and then come right back to the main menu and the proper icon will appear. This is not a real problem that stops the sim, just a curiosity has popped up recently.
And one other quick note. After fixing the tarp by changing screens. If you leave rF2, come back later in the day and restart rF2,,.the car is properly displayed.