No mods used since the update to 0.13, all the saves/maps were created after the update. All other Achievements worked for me.
I also tried the Step with my "8h achivement run" save, so no peaceful mode and no other mods.

I'm playing 0.13.13 and got hit several times by a train on different maps, but don't get the achievement in game and also not on Steam.
I also deleted the achievements.dat file and tried to edit the config.lua as suggested in another post. Both doesn't help.