PlayStation Clinchfield: Extra 3014 South- Path Blocked By Moss Turn

Got a permanent red signal at Allen Storage due to a NB train blocking the main. The NB train is First Moss Turn Part 2: Processing pickups.

The engines and hoppers that this turn picked up are stopped at a red signal in the siding, waiting for clearance to back up to their train; which is blocking the main and my path south! I tried saving and reloading, but this did absolutely nothing. Still blocked...

Standard PS4 and this was not part of a Journey..

 

This problem has been known for quite some time, but fixing bugs obviously has a very low priority, especially for issues that are complicated to fix. It has already been reported several times that the timetable on this route is broken, as the AI trains don't stick to the speed limit, but "drive" much faster. (In fact, the game puts them on the track at a point they could never have reached if they had adhered to the speed limit).
This leads to blockages such as you have encountered.