Please run the following query in your XenForo 1.1.3 database: Code: SELECT xf_conversation_master.conversation_id, xf_conversation_master.recipient_count, count(xf_conversation_recipient.user_id) as 'howmany' FROM xf_conversation_master, xf_conversation_recipient WHERE xf_conversation_recipient.conversation_id = xf_conversation_master.conversation_id GROUP BY xf_conversation_recipient.conversation_id In our database the field "xf_conversation_master.recipient_count" shows incorrect data in many conversations. We found up to "6" recipient_count in conversations with just 2 people. Very often there is "3" when conversations only have 2 participients. Can you confirm that this is a XenForo bug (race condition)? If yes, how can we solve it? Or is it just a weird coincidence with our database setup?