Hello Choo Choo Engineers,
This is a bug fix patch. When refunding abilities in the Game Over menu, the locomotive was not reverting back to the default locomotive. That is fixed now.
Multiple windows could be opened when in game and it could easily result in a window being open and the game not paused. I believe I've fixed this now and when you open a window for anything (such as the upgrade menu, or resolution menu, etc.), any open window will be closed first and then the requested window will open and the game paused.
Keep up the great work in reporting bugs Choo Choo Engineers!