Going back to play RSN after the latest update for Mastery, I've come across a light bug on the DB BR 143, where the DB logo and the locomotives numbers illuminate with the Headlights on. Moreover most white surfaces and lines on the displays and instruments in the cab are lit this way as well. The colour resembles the same of the headlight, and when driving it flickers almost like a reflection from the headlight's reflection on the sleepers. I think this has been mentioned in a thread about ghost cars as well, but haven't seen a bug report on this issue with the flickering light bleed from the DB BR 143 headlight.
I can confirm this, it flashes several times a second and I noticed that it is caused by the center headlight. If you don't turn on the center headlight, neither the DB logo nor the instrument labels light up or flash. Only the old 143 is affected, the new revised 143 behaves normally.