New answers tagged audiences
When you edit an app or web part all invisible apps or web parts will appear.
For SharePoint 2013 you need to enable the Site Collection Feature "SharePoint Server Publishing Infrastructure" for audience target to work. http://community.office365.com/en-us/f/148/t/230976.aspx
The GUID display on audiences is by design. I have also had the same problem where the first item in the list is displayed as GUID - I even tried different lists.. There is a link here http://www.vishansondhi.com/?p=36 which confirms that is an issue which Microsoft have not fixed (& I believe they don't intend to either)
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