My BMW SA told me that the "minor" errors are reported just once, then stored for a bried period of time and then dissapear automatically. This could be the case.
However anytime the car tries to check again, it might throw the error again. But you will see that I guess.
At the moment I'm thinking more about the brightness than the error message. The pics you posted are actually very good (thanks!) they give a realistic view. Can you make a few more in the daytime, but directly from the front ?
2016 G11 M-Sport Torque Monster, singapore grey, shadowline, ivory white / black, black alcantara.