When you say "the application keys are the same" does that mean, you had AF integration working correctly at one point, and now it does not work? If so, what did you change?

Just for reference, here are some topics about AF API integration:

http://www.activemodules.com/blogs/...orums-4-3/
http://www.activemodules.com/blogs/...s-control/

Thanks Ben, I checked the pages, but I couldn't find the solution. Please see the description of settings below.

The API keys are set in AF and AS and are the same.
The Main Forum Group has the "Active Social Integration:" "Journal Security:" set to "Can Read Only". " New Topics only:" is unchecked.
The Forum Groups Inherit the settings. All Forum Groups are hidden.
AS-Groups has its own security groups: GroupAdmin and GroupMember. These are set appropriate to every group.
User who created the AF post is GroupAdmin and GroupMember. So the post should be shown in Journal.

I need to ensure that user will be able to read ONLY journal and posts from groups he is member of.