Factorio Forums

Need a train running in automatic mode.
Train is stopped at a station or a signal.
Use Alt-D to deconstruct some things near the station.
(Accidentally) include at least part the train in the deconstruction selection
Press Ctrl-Z to undo that, (before the bots have touched it.)

Bug: The train is now in manual mode.

What should it do: The train should return to automatic mode.

Klonan said in 2021:

Any change to trains generally sets them back to manual

That was true in 2021, but it isn't true anymore. If I create a blueprint of an automatic train and its fuel, that train starts moving once it is built...