Feed not found for valid RSS

When trying to add a new RSS feed I get the following error:

This address does not point to an RSS feed or a website with an RSS feed.

This is the feed:
https://harboroughfm.co.uk/news/feed

rssboard org/rss-validator says a valid :white_check_mark:

W3 says Valid :white_check_mark:
https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fharboroughfm.co.uk%2Fnews%2Ffeed

It doesn’t look like it has any stories. Here’s the feed xml:

<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	
	>
<channel>
	<title>
	Comments on: News	</title>
	<atom:link href="https://harboroughfm.co.uk/news/feed/" rel="self" type="application/rss+xml" />
	<link>https://harboroughfm.co.uk</link>
	<description>Local Radio For Market Harborough</description>
	<lastBuildDate>Wed, 22 Jun 2022 14:57:48 +0000</lastBuildDate>
	<sy:updatePeriod>
	hourly	</sy:updatePeriod>
	<sy:updateFrequency>
	1	</sy:updateFrequency>
	<generator>https://wordpress.org/?v=6.8.2</generator>
</channel>
</rss>