Invalid port overlapped

It wont show every time. Sometimes it works just fine. Sometimes its calling for help like a baby, and sometimes it even wont work at all... 

Thats why they havent fixed it yet. Its one of those bugs, you cant catch.

I don't think you should be able to build like that in the first place. Just move the bridge 1 space and use cables to connect both the ports.

Got the same one today doing the same thing. Didnt seem to affect it. Hopefully that message is gone on reload or I will have to rebuild it.