Hi there!
Please, what is happening for it to not work? An error pops up? Or the game just boots normally?
Did you setup all the regions/terrain tags or the tiles to make the platforms works, on your new project?
As soon as the game starts, press F12. A browser window will open. Go to the CONSOLE tab, and send me a screenshot of what is in there.
It will also be helpful if you sent me ascreenshots of the platform plugin parameters