"Lost" train on straight track?

[GrapplerBot]

So I'm making a large central transfer station for a bunch of industries as practice for switching and switchyards. So far it's been going very smoothly, trains are flowing well.

I needed a sawmill though, so I funded one straight in front of one of the sides of my central station. Two straight tracks with passing crosses for multiple trains to run, relatively short distance. But when I made a lumber train, it claimed it is "lost" and it just sits in the middle of my yard... on the rail to the sawmill. It doesn't even move, even though there are no switches blocking it. I tried deleting it and creating another train, same problem. I tried adding a third rail to give it more paths, still gets stuck (or when it doesn't get stuck, it goes to a station in a completely opposite direction.) I checked all my tracks and they are all intact, none are missing.

Why is it getting stuck? I've got trains running much, much longer tracks that share passing lines with other industries and they've never had a problem.

[planetmaker]

Generally for these type of questions: One savegame saves a thousand words

[3iff]

While waiting for the savegame, you're not trying to run an electric train on non-electric tracks, are you?

[zilber]

Seems it still actual problem, I have quite straight forward path, where trains are lost and trying to reverse for some reason.
Is it possible to fix anyway? Can't upload .sav, due to the limitations of the forum, but can deliver it via e-mail or any other way.

[Eddi]

trains reverse if they wait too long at a red signal. this will often cause them to get lost.

[zilber]

Not in my case trains don't have any red signals on the way, they just trying to reverse at first junction which can allow it