PC Db Br 363 - "trunk Service" Scenario Broken

Just tried to play this scenario and all runs perfectly fine up until the point that the DB BR185.2 brings a train into the yard. The expected behaviour for this scenario is that the locomotive drops it's wagons off and then pulls out of the yard, allowing you to continue shunting. Instead however, the locomotive now stops and just sits there, the scenario is now soft locked.

I waited 15 minutes but nothing happens, contacting the dispatcher just gives you a message: "Denied. Train in section ahead". This leaves me in the 363, trapped between the wagons I just dropped off and a red signal that won't change.

This happened on the Steam build. I have all DLC as of 30/11/2021 installed.

 

I can confirm this bug. It used to work ok.