It appears the only thing that works is if I set an input action key to set the very same value to true. In my case, I set left click to set Show mouse cursor = true on my custom player controller. This appears to work. But now I’d like to know why the toggle is not being set through the other steps. Is this a bug? Additionally, when my game starts there is a UMG menu present. If my first click is on top of a button in that menu, the game takes the click, not the menu, and inputaction Left click Event doesn’t fire.