IF all these activities were created for MSTS ( and I'm assuming they were ) then the AI trains may not run according to the MSTS schedule. Have you opened the Map Window --- dispatcher view --- and looked to see if the AI trains are present in the activity.
Using the HUD windows ---- 7.19.5 Extended HUD for Dispatcher Information --- will show the status of any AI traffic, running or stopped.
Using the HUD windows ---- 7.19.5 Extended HUD for Dispatcher Information --- will show the status of any AI traffic, running or stopped.





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