Does signals effect a scenario?

[artimrj]

I explain about that red X in my tutorial. If you know the destination is correct, save the scenario, exit the sim, reload the sim, then reload the scenario and all should be well. It works for me most of the time. You can tell by hitting the playbutton after saving, if it does not error on load then it is OK. Seems the latest upgrade caused the AI dispathcer to go senile.

[OldProf]

I'll second Bob's advice ... some red x's are just red herrings. This is especially true when the explanation the editor offers when you click on that red X in the editor is "Unknown".