I have have tried this Stanier Good timetable a number of times, every time I couple up to the 1st set of wagons the engine and wagons get launched off of track. I have tried to couple at various distances away from the wagons and the result is always the same.
Half the service mode runs are unplayable at the moment. Mixture of derailments and spads. Hopefully a fix is in the works.
DTG know this, it was acknowledged on a previous set of patch notes https://forums.dovetailgames.com/threads/train-sim-world-2-update-notes-20th-june-2022.55844/
Brilliant - I would I never thought of checking the patch notes! - At least DTG are aware. That saves me wasting even more time trying the others. This is where I firmly believe a list of known issues/bugs would be really helpful!