EDIT: As detailed below, there is a solution in the current game after all.
Game version: 1.16.10
OS: Win
Steps to reproduce:
- Dispatch train into autoblock leading directly into station with a train in it (accidentally through automation in my case).
- Be unable to move either train.
Wrong behavior:
Before the new upgrade system, there was an upgrade that allowed trains to "stop and reverse", which could resolve situations resulting from misconfiguration like this without needing to reload the whole map to a previous state. In the current upgrade system, this apparently doesn't exist and some maps allow an irreconcilable deadlock between trains to result.
Expected behavior:
Some option to access the stop-and-reverse functionality to be available again.
Map:
https://steamcommunity.com/sharedfiles/filedetails/?id=2561919494&searchtext=howe