Site Origin Layout Slider full size

Hey there,

i have a problem with the layout sliders that i dont understand.

For some of my pages the sliders are full size – from the left end of the website to the right end.

Example: http://versicherungenmitkopf.de/vmk-analyse/

But some are just smaller and there is space left on the left and right side.

Example: http://versicherungenmitkopf.de/ueber-bastian-kunkel/

Looking into the settings i cannot see any different settings. Picture size is also the same.

What am i missing? Thank you!!!