Hi Marechal,
Anecdotally, here is how I discovered accidentally this small bug.
By creating the scenario "Kalinin Offensive" (
tm.asp?m=4227009) which is a conversion of the original scenario "Kalinin" from "Operation Barbarossa The Struggle for Russia", there was initially a railbridge just next to the city Redkino. By testing the scenario (of multiple times on each side) I realized that it was impossible to go on the railbridge.
We can note that in "Operation Barbarossa The Struggle for Russia", it is impossible for a motorized unit to go on a railbridge what is not the case in "Germany at war".
Finally to end, this small bug also exists in "Operation Barbarossa The Struggle for Russia" (I made a test on an old computer).
On the GoogleMap we can see a bridge above a lake nowadays.
