Well as you can see, I released the single player version of Roblox 2 Pre-alpha game, a testing game and I want y'all to check it out and tell me what is wrong. I use this code so that both the characters can stand on the ground and jump in the single player version of the game.

define idk
switch costume to [ Normal v]
change y by (1)
repeat until <not <touching [ Tester Ground v] ?>>
change y by (1)

end
change y by (-1)