Actually just completed a run yesterday from Dresden to Leipzig and encountered no problems. My immediate suspicion would be a GPA speed trap.
Is there any indication on when all the broken services in journey mode on this route will be fixed? It's been months now since the route came out and we are still not able to simply even play all the content that we payed for...
Sadly DTG have a track record of not fixing broken Journey Mode elements. The G6 still has a shunting timetable that can’t be finished due to a signalling issue on RRO. So I wouldn’t hold your breath. The routes that came with TSW6 are already getting on for five months old and DTG are anxious to sell us the latest content, or Sodor, or Metro Rivals. So I wouldn’t hold your breath…