Why does the van not change i had the feather and i would change
You can only get a new powerup if your powerup slot is empty, or if the powerup you currently have is activated when you go through a powerup arch.
So if you were riding through a banner with the van powerup in the circle, you wouldn’t be awarded a new one unless you started using it before going through the arch.
(Or if you bin it from the Companion app)