Something that I always notice about German routes. Why to the wrong road running signals always display a yellow aspect instead of red like on UK and US routes. All German routes as you drive along and look at the signals on the opposite track they are all yellow. Should they not be all red. Is this a bug because any real life driver cab views on youtube do not show this.
Yellow aspects can be found on „Vorsignale“ (signals telling you about your next real signal). Basically, the signals on the opposite track should be alternating between yellow and red. If this is not what you‘re asking about, then a picture showing what you mean would be helpful.
Yes that's it. I just assumed they should all be red. Unless there is another train running in parallel is the only time they should display any other aspect.