Published article not appearing on publication site or RSS feed

I published an article on my Hashnode publication (lastdayonearthonpc.hashnode.dev), but it is not showing up on the live site or in the RSS feed.

Details:
- Publication: lastdayonearthonpc.hashnode.dev
- The article editor shows "Published" status with a green checkmark
- However, the publication homepage (lastdayonearthonpc.hashnode.dev) shows "I haven't started writing yet" instead of the article
- The RSS feed (lastdayonearthonpc.hashnode.dev/rss.xml) contains no entries for the article
- I tried the following, but the issue persists:
1. Republishing via the "Update" button multiple times
2. Hard-refreshing the browser (Ctrl+Shift+R)
3. Waiting 20+ minutes for cache/propagation
4. Checking the Visibility settings (Hide from feed, Disable comments — all unchecked/normal)

This appears to be a backend sync issue where the article is marked as published but is not actually registered in the publication's post list or RSS feed.

Please let me know if you need any additional information or screenshots.

Inizia riproducendo il problema tramite l’editor degli articoli, la homepage della pubblicazione all’indirizzo lastdayonearthonpc.hashnode.dev e il relativo endpoint /rss.xml. Verifica se l’articolo pubblicato è presente nell’elenco dei post della pubblicazione e nel percorso di generazione RSS; il lavoro è completato quando appare nella homepage e come RSS- senza ripubblicazione manuale.

Scritto dal modello di indicizzazione a partire dal testo della issue.