Being able to move objects after pressing play was by design actually! I wanted to provide opportunity for the player to use the same object multiple times throughout the level and wanted to give more player agency by not limiting them to just placing and pressing play! At the end of the day I wanted people to come up with their own solutions rather than use my predetermined one, so if they can jump infinitely on the plank then I count that as a creative solution to the puzzle :) thanks for playing and for the feedback