Redirect failing to update

I have used Redirections for many years with no issues. For some reason when I change the URL for this one page, it does not actually change the url EVEN THOUGH it displays the correct URL in the list. When I click Check Redirects the OLD url is still displayed. I have cleared the server cache and browser cache and it doesn’t make a difference. I have deleted the redirect and re-created it from scratch and it STILL does this. I have not experienced anything like this before. HELP!

The page I need help with: [log in to see the link]