I have created a second website as I need to maintain a second blog series that's completely separate from the first one, but have links to them from one menu. I've created the second website with no problem, and moved some blogs to the new website with no problem, but now I need to have a separate xxx.odoo.com/blog URL that I can add to the menu. It seems the only way I can do this is to set the URL in the website configuration screen, which I have done - but it doesn't work, I get a 404 message.

As I doing something wrong? Is there a way around this? I don't need my own purchased domain, Odoo default is fine - I just need two of these. Am on v14 on SaaS.