So I posted this in the CxAerospace Station Parts thread thinking it was that mod, but I'm having trouble getting these to "click" together in any way at all.
These were almost perfectly lined up axially for hours at about this distance, slowly spun through all orientations with the teeth matching or not, SAS on for one, the other, both, or neither ships, and even had them 'manually' mesh together with the teeth in the right position, which they both just bounced off from. Am I missing something like a button to press or activation? They are both the same sized, "Clamp-O-Tron Docking Port 'Basic'".