Users other than admin can't access through breadcrumb

When authenticated, or anonymous users view the main galleries page, they can see it all. Once there, if they click, for example, the test one I made called "First test gallery", they can see all the pictures in it. The breadcrumb there shows "Galleries › admin's Galleries" If they click the breadcrumb link to see all of 'admin's Galleries' it takes them to "/galleries/1" and that causes an "Access Denied" error. As admin, I can get to those pages, but everyone else is denied. I've checked the permissions, and all is correct, so I don't know what else could have been set to cause this.