If you click on the URLs you’'ll see the posts don’t match. For the time being I ended up just using Feed Creator and manually visiting the ThreadReader pages, but this is unhelpful.
This is the first time I’ve had FTR pull the wrong stories. On my instance I tried changing IP and clearing the browser cache in case there was any caching but that didn’t help, and also the same behaviour happened when subscribed to these feeds in Newsblur.
Any idea what is causing this issue and how to fix it?
Please update your site config files for Full-Text RSS and try again.
When an extraction rule fails to match, Full-Text RSS will attempt to detect the content block. In this case, it picks out a tweet from further down on the page, rather than the main thread. (This can happen when the HTML structure doesn’t conform to what a typical text article looks like - Mozilla’s Reader mode also fails to extract the content correctly on this site for similar reasons.)