IF you are not getting notifications, I successfully fixed mine this way:
Log in to the website, not the phone app. Go to your Profile, then Settings. Next to Blog Subscription, click on SUBSCRIBE.
If it says UNSUBSCRIBE, click unsubscribe, log out and log back in, then go back and SUBSCRIBE. Please note what color the button is, and if you can screen shot that would be great. [When I first looked I think it was blue, now it's working and it's white]
There is definitely an issue that some names fell off the subscription list somehow. Resubscribing helped me, but I am worried that it will happen again. Let me know how it goes, so I can keep track of the issue.