Why is this marked as resolved?? it still doesn’t work. it works if all you are doing is sending an event but an interface with return data doesn’t. I’ve been trying to get this working for a few hours now and I thought I was doing it wrong so I searched and found this. everything you have mentioned I’ve just experienced. even the Interface being displayed on the list but wont add. I also found one more thing. if I try to return one variable it doesn’t show but if I add a second suddenly both pins show on the calling node. as soon as I add any kind of return variables it no longer shows the event nodes