I found when I copied a page, I did not remove the appended number code:
It looks like the URL you entered in your redirect is missing a letter "L" on the end. If you add that and re-publish it should fix it for you, @callmekko.
That should be pretty much instant as soon as you change it and re-publish.
Missed this response, found it today and realized I hadn't republished after the last change. The redirect is now working as expected. Thanks for the extra set of eyes.