Deleting Address Object FortiManager

Hey all - running into an issue deleting an address object that was used in an IPSEC configuration. I was able to delete the tunnel completely successfully, but as last part of clean up was to remove the address object I created to reference in the tunnel configuration. When I go to delete the address object, I get an error stating "Failed to delete object due to the following reason: used - object is copied to VDOM xxxxxx-efw.root." Any idea how and where to remove the reference from the root VDOM? I do not have any per device mappings for this object so not sure where the reference is coming from. Any help is appreciated.