DCForum Discussion Forum - Ok activity designing experts

3 things:
1. When im driving on my custom activity (Night Freight) i always run across a red signal at the top of the track monitor which causes my train to stop just outside of Columbia falls. There are no trains on my track, however there's an AI running on the track next to me which eventually merges into my track. Is this whats causing the red light? The activity starts in whitefish and goes to Essex, following the employee special 1.
2. Whenever i start the editor or the simulator, it always says "failed to load activity headers". What does this mean?
3. If i program 2 AI's to slam into eachother on another track, will that end the scenario for me?

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