En las reglas de los botones pon tappet no preset

Look how to do mix the cube or idk 1 Put a TAG on te cubes AND Put animation or idk , Put a x in animation AND rules Put ''when this collides with character AND Put modify AND Put the 3 file AND Put 2 ,if you draw on the First Put 1 AND Done!

Porque el preset que mientras mantengas presionado se creara un blueprint y tappet es para solo crear 1 cada que se toca bro