Created a "Quick" redirect from the interface in this plugin.
Page A should redirect to page B.
What happened was, page A would redirect to page B, but then page B would redirect back to page A. I never setup any redirects from B to A.
I deleted the redirect from the plugin, and that removed the redirect from A to B, but the redirect from page B to A still exists. I overwritten my .htaccess, I've uninstalled the plugin, and still the redirect exists.