Factorio Forums

I've looked it up, looked at other people asking the same question, but their answers dont work for me. Help! Heres my save if you need it:

If you click on either of the locomotives, you'll notice that the next stop is highlighted red, and if you hover over it it says "no stops with this name exist". It looks like either you renamed a train stop, or you moved/replaced it (resulting in a new randomly-generated name).