Forza Horizon 4 - Always Winter?

I only have winter with Forza Horizon 4 (XBox One). Even if the season changes to spring, it will be winter again the next time I start the game.

It used to be the same for me… But after a while we went back to the next season of its own accord.

Thanks, but the problem is, it changes to spring, but unfortunately it doesn't stay on e.g. Spring. The game saves automatically at the Horizon festival site or at the house. If I then quit the game and e.g. Starting anew the next day, it's winter again, although before I finished it was spring.

I do not know why.