3D FlipBook - Hey, FlipBook stops to resize to the middle, when I start to turn over pages. So the left side of the book stays out of

Hey, FlipBook stops to resize to the middle, when I start to turn over pages. So the left side of the book stays out of sight. What can I do? Tryed it with an new installation, after rename the plugin via ftp. Have an idea? Is it a configuration, I need to change?