There are often a few places worth checking with WinCAD. They represent unusual wiring, but we cannot tell if they show a problem. We would welcome feedback on what you find this message to really mean.
--Scanning drawing 2100215E.CAD Multiple wires at a source: assuming a connector at 3640,2100.
This error can be built directly into Hyperview. For more information, see the article Building error reports into the M14.