Why won't Circles of Power show team color?

I have a map that uses the Circle of Power unit. During gameplay ownership of these circles switches around. My problem is that on the minimap they always look like just a little black dot no matter who owns it. This makes it hard to see what is really happening on the map. Most other buildings and units don't have this problem, why do circles of power and how do I fix it?

The minimap for the REAL circle of model will not change :/...
Here is a tip, make a unit with a farm base, remove all sounds, shadow, and food produces, also the gold it costs, etc.
Make it walkable and model circle of power. ;D