Railworks America

So, I am currently working on the Thurmont and Branford shortline, and I've run into a weird issue.
Whenever I change the seasons, the effects don't show in the game. Let say I change it to fall, I go into the scenario and all the trees are green.
But this is where it gets weird. I loaded up a scenario from one of my other routes that takes place during winter, I go back to the T&B free roam, and boom. Snow.
Anybody know what might be causing this weird predicament? Thanks.

Go read your stuff in the route xml and make sure it's consistent from one season to another.