Nodes with no connector

[ChrixBed]

Hi,

I’m a beginner with UE4 and today I try to create new material and my nodes appear without any connector. I must have a tick something but I can’t figure out what is it and how to get that back to normal i.e. node with visible connector.

[ChrixBed]

Arrgg, I’m so dummy, the “big” button was right in my face!

need a coffee…