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Here are a couple missing tidbits of information...might be more...

You have your circles defined as far as size, but you do not have enough information in the sketch to full define their location. I am quite certain that if you grab the center-point for any of the circles and try to drag it...it will move (which means it is not fully defined).

Here are a couple missing tidbits of information...might be more...

You have your circles defined as far as size, but you do not have enough information in the sketch to full define their location. I am quite certain that if you grab the center-point for any of the circles and try to drag it...it will move (which means it is not fully defined).