Canvas get all frames layered over and over without clearing the stage when there is no background image set and some SpriteSheet animation is playing.
How to avoid that and clear the Stage on each frame of that animation?
The EaselJS stage should clear each time it is updated (using stage.update()) before it redraws, unless you have stage.autoClear=false;.
If that is not working, then something else is going on. Any chance you can post code or a working sample?