I was wondering about 2 things.
First, did you save the background layer for your Sprite? That makes a block instead of just the sprite. I usually delete that layer when I don't need it anymore.
My other concern is for when you are in Construct2. In the animations block (I think) , when you set the origin, did you try to set it for the bottom right? I am not sure if that will work if you use it for both directions.
Just thoughts as I haven't been over there for over a week.
Ken