Currently if you use the bbcode manuscript code to post in the Community Update channel it does not link correctly, when you hover and click read it just sends you to your dashboard which kind of makes getting your book read/seen somewhat difficult, currently work around is to post a hard link url with the book cover, which is fine if your aware of the problem.
use the "Embed in World" bbcode to post an update via Community Updates, clicking the link will return you to you dashboard and not the manuscript.
the "Embed into World" bbcode found under the manuscripts.
Just wanted to add the bbcode works fine in a world anvil article so I am assuming something is not getting handled correctly by the community feed. also if you click the link on the posters actual profile page the bbcode works as well so its purely on the Community Updates list.
I've also noticed this issue when I select someone's manuscript. It loops back to the desktop when one is selected.