Exchange 2013 SP1: Whenever I open my own mailbox in OWA (2013), I can see the 'Apps Bar' at the top of the email (such as Bing maps, Action Items etc) - but when I (or anyone else in the org) goes to 'Open another mailbox' that they have full access permissions to, this App bar disappears as soon as the other mailbox loads. This causes an issue for us as one of the apps is Symantec Enterprise Vault. The same thing appears to happen in the full Outlook 2013 client as well.
Is there any way to make the App Bar appear when opening another mailbox?
Thanks in advance.