Invalid URLS

I activated this on a dev site and it won’t seem to accept any feeds I add, such as https://www.theguardian.com/us-news/rss … I can add them to a Gutenberg RSS block, or feedzy and they work, but not with the aggregator; when I add any url, even if valid (https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fwww.theguardian.com%2Fus-news%2Frss) the plugin says it’s not valid. Any help?

• This topic was modified 5 years, 4 months ago by jerryb2013.