There seems to be something wrong with the check box on “Native Ad”. Every time I try to add a line item and target it to any native Ad Unit the checkbox is always grayed out. When I create an app and make the first ad unit a native ad it somehow magically adds itself to the demo line item, but even for that line item, upon clicking “Edit Line Item”, the checkbox is still grayed out.
Has anyone had this problem? I might just be missing something. Any help would be greatly appreciated!