Scratch

I have been working on a project for two weeks. Well, yesterday I ran into a problem. My sprite is supposed to hide until a message is broadcasted to it, in which it shows and goes to a certain coordinate. Some variables are then set, like [blocks]<set{ lives }to(3)[/blocks] and [blocks]<set{ water }to(100)[/blocks]. Well, all the sprite does is "teleport" to the bottom of the screen. Even when I drag the sprite, it always sticks to the bottom. The coordinates in which it appears is well above the bottom of the screen, and I programmed it to have gravity. There is nothing wrong with the gravity. I first thoought it was the [blocks]<color[  ]is over[  ][/blocks] that was causing the problem, but even when I reprogram it, the sprite still teleports. Is it Scratch's fault, or did I make a mistake in my programming? :I