Redirect plugin stopped redirecting

This is a wonderful plugin, have been using it for years. A couple of days ago I created several redirects, but they aren’t working, they aren’t redirecting to the new URL. When I verify them within the plugin it seems fine, but when I actually test them, for real, the original URL opens up, instead of the redirect. My old redirects are still working fine, but can’t seem to get any of the new ones to work.