Ahhhhh yes, thank you so much! I just figured out what was wrong. Sorry for the mistake!

Hi, was just playing in 2.0 and using the new rails. Had an error where I can only place stops on one side of the new (straight) rails, and attempts to put them on the other side are met with a floating error message:

train error factorio.jpg

I placed the stop you can see by copying from a train ...