Thank you for posting video. But for better understanding your workflow can you write your actions step-by step. What kind of object is your target?
As shown in the video, my problem is if I choose a specific shape or image and try to put a shadow for it as I saw in the video. If I try to change the value of the X, it changes the value of the blur and vice versa with the three values of X, Y and blur.
I can see that you are working with Shadows offset values XYZ that change the position of shadow from the original object. Can't note any blur value.