I was trying to create a simple building, that looks like a large Creep Tumor. I created it's unit value (in Data editor), and duplicated actor of Creep Tumor. I tried to resize the unit, and that is where I encountered problem. If I change scale value in actor (that is used only by my new unit) it changes size of my unit and Creep Tumor. Then, I tried to modify scale values in model, which is copy of the original, and I have the same effect. What am I doing wrong?