When I try to use the renderTemplateFile javascript call with the following:

var hc = TC.renderTemplateFile({ storeId: 1, templateFile: '/MacroScripts/hoverCart.cshtml', pageId: _nodeId, async: false });
$("#pardiv").html(hc);

hc is null and in the inspector in chrome I see that the Network response is:

INNEREXCEPTION:
System.Exception: Template file isn't allowed for rendering

So I thought this would need to be ticked under 

>Tea Commerce> Stores > Template Rendering

But it is, you can see a picture here: https://www.dropbox.com/s/1tbwp0681z49ufv/templaterendering.png

Is there anything else it could be?

I'm using Umbraco v6.1.6 with the latest version of Tea Commerce