At the Kassel-Würzburg Route I was driving service 50244 departure 22:58 from Fulda, using Journey mode. At 4.6 km before the destination I had to stop for a red signal at a 1.3% grade. When the signal cleared, I could not get the train moving faster than 0.2 km/s. Brakes were cleared properly. The engine is the BR185. I I think this may be a bug, not enough power for the loco. This is a very annoying bug, because I cannot complete the journey chapter which licks the next chapter. Please fix this issue or at least remove the locking on chapters. That is really a very bad idea.
Add the following lines to your engine.ini and the chapter locking is history: [SystemSettings] ts2.dbg.JourneyChapterLockOverride=1