Issues with feed (

I’m having problems with this feed, Newsblur isn’t showing items from 2023:

In particular, I expected this blog post to show up, but it’s missing:

I checked and if this is the same feed – NewsBlur – then the feed itself doesn’t have that story in it. Also, the feed is unordered. Go take a look at it, it’s got entries from 2018 at top. I’d email him and ask him to fix ordering in the RSS feed.

The feed has the item in it (see screenshot below).

The feed isn’t ordered by pubDate, but that date is accurate, and ordering isn’t a requirement for RSS feeds, AFAIK.