PC Shm Oil Switching Cannot Be Completed

I played the Oil Switching timetable service from the Journey.
For the first coupling task you need to couple 10 wagons to the front. This works, but I got stuck in the "Wait a moment" instruction. Waiting takes a long time here, it looks like the simulation hangs completely here. It happened also with the replay of this service.

 

我玩完

 

Does it happen all the time, or just once? I have done almost all switching services on Sherman Hill and never had such problem.

 

As said, it happened twice, but only with oil shunting.

 

I now have the same issue with Clinchfield and never had it before. In the Greenbriar turn it happened right when uncoupling. I restarted the game, and it worked again. Then with the next uncoupling action, same issue. This is very annoying, because it makes the ropute unplayable in addition to the many bugs that are not fixed yet.

 

Same issue: "Wait a moment" never clears.