I’ve been having this problem for a while. Sometimes when I double click on a wire it doesn’t create a relay. Sometimes it’s on all the wires others just in some of them like in this case. It happens with both native grasshopper and plug-in components. Is this a bug or something’s happening only in my files?
I also experienced that behavior, and found out it works much better when I double click on the wire much closer to where its connecting to the next component