Array modifier - why is the source object tripled? I don't understand why is the source object: BaseDeco 1, tripled when I apply the array modifier, with offset based on an Empty (BaseDeco 1 Empty)? It is tripled - there are 3 sources from which the Array makes clones.

I thought the array should start from one object (in this case the BaseDeco 1 - when I go into edit mode, there is clearly only one piece), and go around making 20 copies, but it's tripled. Why and how to control it?

I simply need 20 copies going around the perimeter of the circle.

I'm attaching the Blend.
The modifier works as intended in the file. The pieces overlap on top of each other because of the amount of rotation in the Z axis of the Offset Object. If you wanted 20 copies around it you need to rotate the offset object 360&deg;/20=18&deg;: