Movie Maker removes deselected photos rather than selected photos (annoying especially when editing a stop motion)

I am editing a lot of photos for a stop motion. But I placed in the wrong photo. I selected the photo and right click and clicked on "Remove." Instead of removing the selected photo it removes the photos in the back or recent photo on the time line which is the bottom photo. It get annoying. I even tried to restart movie maker but the same thing happens. I just can't find a way to remove the photo. Nothing will work. Is this just movie maker acting up or it's a actual problem with movie maker that everyone is experiencing?