Please note that by answering your own post you take yourself out of the MODS "unanswered posts" queue and therefore might have to wait longer for a response - it's better to edit your original post so this does not happen.
That message usually occurs if you don't have the Gantry 5 template marked as default in template manager and have used a "Gantry 5 custom" menu item.
Regards, Mark.
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