[1.0.0] Train on automatic doesn't load it's fuel

[daisyKutter]

Factorio 1.0.0 (build 54889, win64, steam)
Operating system: Windows 7


What did you do?
I was playing the game and one of my trains popped up an alert for fuel. It's an automated train and it should load itself whenever needs coal, so I don't know what can possibly be the issue, I didn't touched the train since long ago.

What happened?
The train was stopped at one of the stations in automatic mode. If I switch the train to manual and then the coal starts to being loaded into the train.

Here is a gif of what happens:
https://gfycat.com/horriblesardonicayeaye

Here is my save file:
https://ufile.io/cwhazk21

What did you expect to happen instead?
I expected for the train to load the coal itself.

[Klonan]

Can you provide the save?

It is most likely, that it was on the way to another station, when in transit the locomotive does not allow insertion

[daisyKutter]

Nevermind, I "found" the "bug". It was my and my faulty logic on train stations, it's a mess. Thanks and sorry for the time lost here.

Provided

Can you provide the save?

It is most likely, that it was on the way to another station, when in transit the locomotive does not allow insertion

The train was working fine for several cicles through stations for a while, here is a screenshot of the schedule for the train: