Normal kerfur plugs are bugged. They don't plug into walls and are stuck attached to the Kerfur. This is with the pink and orange kerfur, it also likely happens with other kerfur's as well.
the physics have been removed from plugs to prevent clipping issues most likely. I have red kerfus and the plug doesn't actually plug in unless i let go of the interact key while the plug is next to the socket.