How to set the image to full width

Hi there,
I'm rebuilding a tp_perfect template and I want a background image to be set to the full width of the screen/page.
When I place this image in the position "top-1-A", the image is set perfectly,
when I place this image in the position "top-2-A" or "bottom-1-A", the image remains on a fixed with, not full screen.
I have the same settings, like:
background-repeat: no-repeat;
background-size: cover;
background-attachment: fixed;

Thanks for feedback.

The settings in the sections of the astroid-framework-layout are different.

Please check this.