does the line get drawn if you just hit your interact key pointed at the sky?
if you hit a wall does the sound play?
first lets make sure you have the input set up in the first place, out of the key event (the box with the red top) exec pin place a “Print String” leave it with “Hello”
if you get the Hello then the key press is being received if not:
- in your project Setting in the engine under input make sure that your interact Key is registered.
- make sure that there are no other objects that could be intercepting they key press.
- move the registration of the Controller into BeginPlay() and store it into a local variable
Have you overriden or inherited StaticMeshComponent? this is supposed to be a default engine class and does not come with a ToggleActivation(), or is this supposed to be a different type?