Hi @Betty2 My best guess is that it must be because the posts were emailed. The system only knows what you’ve read, what you’re interested in, etc. if you are logged in or click through from an email to the system and are already logged in when you do so.
If you reply to the notification emails directly from your email, the system will still post your response, but none of the augmented features (tracking, bookmarking, suggested posts, draft save, drag and drop uploading, tagging, liking, profile pictures, and all the others) will work if you are simply replying by email.
@leah-ganoksin-admin can correct me if this explanation is incorrect. if you think the problem is something else, let us know please at firstname.lastname@example.org
The best way to use the system is either logged in from your computer, or logged in from your mobile phone (it works perfectly on mobile).