I get this email, which I am happy to receive. I click on a particular item within and I get:
"The post you requested doesn't exist or is private."
I can do an end-around and find the post by going in to the site and clicking through screens to get to that post, but I am sure this is not the way it is meant to work. SOME of the notifications do in fact work correctly but many do not. Hope I have explained this problem intelligibly.