Nitter Instances Not Working

Various instances of Nitter have working RSS feeds but Newsblur seems unable to connect to them. When I try to add a feed, the progress wheel just turns and turns and nothing happens.

A couple of examples are below.

https://nitter.uni-sonia.com/CNN/rss
https://nitter.woodland.cafe/CNN/rss

I tried subscribing to CNN / @CNN just now and it worked for me. Maybe try again?

I appreciate you checking! It is also working for me now, too.