Walking animation not working, others do?

I tried to make the animations ofthe player changeble in-game, with this method: (The normal Animations script inside the character)

id = "http://www.roblox.com/asset/?id=".. script.Parent.Idle.Value

The idle animation works with no problems, but the walk animation is only visible for the player, for other players hes just staying and moving around. Why is this happening?

You've probably edited the Animate script, do not edit it. Only edit the animation objects inside the values and you should be good.