Issue with Isotope masonry

I am using Isotope’s fitcolumns layout mode so my post load in columns and extend to the right.

If I set the trigger to manual and click on the link I get more posts loaded. They overlap but at least they load. However when I set the trigger to default or Masonry/Isotope it won’t load more posts when I scroll to the right.

https://www.ads-software.com/extend/plugins/infinite-scroll/