I have a CB Activity module on my frontpage. When registered members click on the attachment, the popup shows. When public clicks there is just a blackish overlay visible. Any idea what can be wrong? Checked as much settings as I could, but can't find it. Strange thing is that I have a menu-item CB Activity where public can click on the attachment and the popup shows ok.
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The only difference I see in the html of the module is for registered:
and for public
As for the menu-item for public it is