@hikingdude thanks for the warning Franz. That's what comes when you have too much time on your hands and you start "messing". This week I changed from a Static Site generator (11ty) to a ClassicPress CMS converted to static site. All works well until you realise that things like RSS feeds have been forgotten in the change 🤣 .
Anyway, I will rectify later this afternoon as I am changing back to the original format. Thanks again for the "heads up" 🙏