Never mind - my memory is totally crap.

I was trying to use the "Move" button to railroad the units. Forgot that railroads require Strategic Move.

Not sure if this has been reported but I am playing the Grand Campaign --- it seems like railroads are no longer working the way I remember it from a few years ago. Now it seems like the game is moving the units like they are in march-mode.

Am I missing something? Its been about 2 maybe 3 years ago ...