Testing the new content width element and setting the content width to 1200 and it’s offsetting to the left of the page on desktop view instead of centering in the page i.e. 0px margin on left, content 1200px then huge margin on right.
Options set were 1200 width, default page layout and set it to activate on one page.
Not sure if it’s a bug or not? I’m testing the new content width element on a local machine site so no site to share but can re-create on a demo site if needed.