Filter color doesnt do what I want

Hello kirupians

I have a vector drawn thingy in my flash movie wich has a filter on it (dropshadow, color black).
Now I made that vector thingy tween and give it trough the tween another “tint”(white).
But the “filter” also change color and doesnt look the way I want it to be(it turns also white).

How can I prevent this ?

thx for reading :smiley: