Why won't my Customised Run/Walk Animation won't show for other players?

Using a server script in ServerScriptService i change the players's walking and running animation to a certain Animation (R15 Animation). But the animation does not show on other screens. I know this because I had tested with a friend of mine and they had no walk/run animations.

Here's the code which changes the animation

game.Players.PlayerAdded:Connect(function(plr)
	plr.CharacterAdded:Connect(function(char)
		wait(1)
		char.Animate.walk.WalkAnim.AnimationId = "rbxassetid://4645529202"
		char.Animate.run.RunAnim.AnimationId = "rbxassetid://4645529202"--Gives player animations
		
	end)
end)

(game.ServerScriptService.Additions)

Animation: https://www.roblox.com/library/4645529202/sprint3

I'm assuming that the character loads the walk Animation before you get a chance to update them. Your best option in that case is to press Play, copy the Animate script, then paste it in StarterPlayer --> StarterCharacterScripts. Make sure to change IDs. Let me know how it goes!

Copy the default Animate script from a player. You can do this by play-testing and copying your player character's. Change the walk/run anim Ids to your custom ones Put the Animate in StarterCharacterScripts, if you have an Animate script in there, the game won't add the default one.