Battle of Falkirk is bugged

Age of Empires 2 Defintive Edition
Steam

Starting the Battle of Falkirk Scenario crashes the game. It’s a bug that seems to have carried over from Age of Empires 2 HD. It was never adressed based on the multiple Steam Threads.

Step 1: Start the Scenario
Step 2: Attempt to do anything (e.g. Task villagers)
Step 3: Game crashes without error message.