How can I delete a nonexistent trackmark from a route?

[janathan]

This route I created has trackmarks and trains that were on baseboards I deleted. Even though the confirmation window said, "everything on this baseboard will be deleted," the game still seems to think they exist somewhere on the route and I can still tell a train to drive to these nonexistent trackmarks, even though they don't have any track leading to them. How can I locate and delete these trains and trackmarks?

 

[stagecoach]

Try delete missing assets first. Delete a baseboard does not always remove everything.

 

[janathan]

That worked. Thank you.

 

[ecco]

Delete a baseboard does not always remove everything.

Why? If the baseboard is gone, how can there be trackmarks that were on the deleted baseboards?