Seems like a lot of people are having this problem. It could be an instance of Bug 24192 (Macro Trigger OnPostReload doesn't work if you have more than one document opened) which is fixed by SR3. SR3 is in Quarantine, which usually means it will be released within a week. After you install it, If the problem still occurs, QlikTech needs a clearer understanding of the bug for fix in future releases (firstname.lastname@example.org).
Hope this helped!