This is the strangest problem. It is happening on all pages. I don't know when it started. The full-width-section shortcodes are not calculating the width / start point properly. See attached. I tracked the issue down to the $scrollBar variable in init.js. It turns out that part where the width of the scrollbar is subtracted is exactly the amount of difference on my page.. .so... var $scrollBar = ($('#ascrail2000').length > 0 && window.innerWidth > 1000) ? -0 : 0; (instead of -15). and everything looks great now. I did change the width of the scrollbar size one one of the pages (whichever pad had the list of variables to modify), so I dont know if that was causing it. My current size is 8 or 10 in case you want to test. Hope this helps.