Hi there, the Game Mode and Player Controller should be set by default, but just to make sure that it’s not the problem, could you try checking if it’s setup like this under Edit >> Project Settings >> Maps & Modes.
If everything checks out here, then add a Print String node to your **BP_PlayerCharacter_Parent **blueprint as shown here:
Could you check if it’s printing when you play the game. This will let us know if the input is working. Also the default controls are all tailored to keyboard and mouse. So if you’re using a controller, input events would have to be set up for that.