I was trying to remix this project by using some animation 'easing' blocks, but when I tried using the 'glide _ in secs _ easing _' block (the one from official Animation library) it drew an unwanted 'zig-zag' pen trails, so playing with it, in order to prevent that, I needed to update the block's definition - see the updated block definition's image.
You can see it at work in this remix.
@jens could you replace the definition in the official library, too?