Single Click Scriptable Tool not working on 5.4

So I am following this example from Epic on how to make a single click scriptable tool. Scriptable Tools & Editor Mode | Tutorial My script does not work in the editor in 5.4 . However, when I switch to simulate, the tool works fine. I have tasted this same BP on 5.2 and 5.3 and it works straight out of the box in the editor. Have there been any changes to scritptable tools that is causing this?