>Two trains serve Sarnia on the same route between TAL-Yd and SAR-Yd, the fast freight from Buffalo arrives about 2 am for the first sailing of PM#10 at about 4 am, and the second is a local turn that also serves an intermediate Yard in Chatham (CHT-Yd).  It is timed to deliver cars to/from the second sailing of the PM#10.  The problem is that cars get assigned to the FF, which can't take all of them, but they don't get re-assigned to the local later in the day which can take them.  How do I deal with this??

Having multiple trains on the same route, while perfectly OK, may require some special considerations.

Once cars are assigned to a train you have to take manual action to cause those cars to be re-assigned to another train.  The manual action is at "Exceptions".  Under "Show cars in trains".   Click on the column header (showing the train-symbol) for the train you want to remove cars from.   Then select which group of cars you want removed.

Using this action causes the cars to be immediately re-classified.  I recently added a "progress bar" to visibly display that re-classification was happening.

This action, in this case, should be taken after the first train has completed.   This will cause the program to preferentially find the later train.

          Jim