I draw a sprite, then select it with the select tool, then go back to the scripting tab. I was experimenting with a dial that goes up and down via the up arrow key. When I press the up arrow key, the sprite actually moves up although I have no script that tells me to. I eventually found it was the sprite itself that was moving up the canvas in the painting mode. This should not be active while in scripting. This could possibly wreak havoc on a multi-object sprite.

I hope this is fixed when sprite-centre is implemented, or possibly earlier than that.

I've noticed this quite a bit as well. The stage responds to arrow key events when the paint editor is in focus.