[Plugin: FancyBox for WordPress] Gallery always being built for the entire page

for my blog, https://www.8bitkid.com, regardless of whether or not i select “Do not group images in gallery automatically (use this if you want to make galleries manually with the REL attribute)” the plugin is enabling viewers to cycle through all of the images on the page.

i expect the behavior when this option is selected to only allow a user to cycle through the images associated with that particular post.