Washington Post RSS feed-based recipes not working

Trying to get the Washington Post RSS feed-based recipe to work

https://feeds.washingtonpost.com/rss...ons/editorials

When I try to create using a standard recipe option, it doesn't work. Seems like that is happening already with other RSS based recipes like the NYT, The Economist and now with the Washington Post. I know unkn0wn has graciously created one for the NYT RSS based recipes which works great. I am hoping his expertise can help on this one. Thank you.