Hi!

I just updated from 7.3.0 -> 7.3.1 and found that some of my macros stopped working.

My macro is now doing this (Located inside Views/MacroPartials):

@{Html.RenderAction("Teaser", "TeaserSurface", new {index = Model.MacroParameters["teaser"] });}

And my TeaserSurfaceController.cs (Located inside folder Controllers) looks like this:

namespace Xxx.Controllers
{
    public class TeaserSurfaceController : SurfaceController
    {
        public ActionResult Teaser(int index)
        {
            var vm = new TeaserVM()
            {
                Index = index
            };
            return View(vm);
        }
    }
}

And lastly, this is my view inside the Views/TeaserSurface-folder

@model Xxx.ViewModels.TeaserVM
@if (Model.Index != -1)
{
    @Html.Raw(@library.RenderTemplate(Model.Index))
}

The error I get is:

 Error rendering template with id 3421: 'System.Web.HttpException (0x80004005): The controller for path '/' was not found or does not implement IController.
   at System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType)
   at System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName)
   at Umbraco.Web.Mvc.ControllerFactoryExtensions.GetControllerTypeInternal(IControllerFactory factory, RequestContext requestContext, String controllerName)
   at Umbraco.Web.Mvc.RenderRouteHandler.GetUmbracoRouteDefinition(RequestContext requestContext, PublishedContentRequest publishedContentRequest)
   at Umbraco.Web.Templates.TemplateRenderer.ExecuteTemplateRendering(TextWriter sw, PublishedContentRequest contentRequest)
   at Umbraco.Web.Templates.TemplateRenderer.Render(StringWriter writer)
   at umbraco.library.RenderTemplate(Int32 PageId, Int32 TemplateId)' 

Anyone got an idea what to do after the latest update?

EDIT: PS. I updated through NuGet.