BUG: Controlling cursor with gamepad causes rest of gamepad inputs to not register.

There is some abnormal behavior (or normal but not good behavior) when you have the gamepad control the mouse cursor (using set mouse position blueprint node) and press Gamepad bottom face pad.

For some reason, it causes all gamepad inputs to not register for the player pawn and makes the mouse cursor stuck to the game window (when running the game as a separate instance). When running in the viewport, it will not go to the very top of the editor.

Does anyone know the reason as to why this happens and how to fix it?

After a bit of testing with a new project with no extra plugins other than the one the FPS project gives you, I think this problem seems to be stemming from the Common UI Plugin. One notable difference is that the base/test project still have hovering over buttons work but for the Common UI project, the hover over button does not happen and no visual changes has happened.