...unable to finish a timetable service from Geithain to Leipzig/Messe on the S6 line, because of a wrong placed buffer stop. It only has to be moved a few meters further back and everything should work again. As already mentioned there's another problem with derailment, when staring the same service on the S6 line in the other direction from Leipzig/Messe to Geithain. You can't even start, because by automatically crossing a red signal and then derailing. Here is the appropriate screenshot: By the way kudos to the preservation crew, with the working PIS, moving cars and new details, the whole RT route is going better than before and makes much more fun to play...
I get the impression from the alarming regularity of this occurring in scenario planner paths, new timetables for old routes and in new routes that these stop markers are placed by robots (an automated system in the production) and not by humans. They then go relatively unchecked before release. I can’t think that anyone would place a stop marker there or allow it to stay there if checked.
...it's definitly a wrong placed stop marker. I guess the S6 line wasn't checked in enough detail. That's why the community does the actual beta testing!