Try once again..
It should do. Try configuring its z-order using Object Navigator.
Right Click on Desktopx Icon in systray. Click on List Objects. Object Navigator will open.
Bring your circle's z-order to top and export all objects using object navigator itself.
Note: The object you configure last will automatically come to top. So after you adjusted all z-orders, you should export them using object navigator. Right click on any select all and export.
BTW, what are you trying to make. You might like to group them or assign a parent child relation if they are to go together.