There is no raindrop effect on the glass when the car is driving in rainy days,but there is raindrop effect when it is stationary.
Please add a few more details, that it gets clearer what you mean.
What car/bus has the issue?
Is it reproduceable?
Maybe add a few screenshot.
Mr.Reeze - We're aware of the Raindrops/Snow that are not appearing properly, it will be fixed in a future update.
also, could you please not open a thread for each new issue you encounter, a more appropriate thread would be this one: Update 27: Officially Released.
This thread will be closed.