Displaying a default image in a Template Grid

I have an object 'Product' which derives from System.Image. On my dataview form to create new Products I have an image uploader and an image viewer. The image viewer displays a default image (one of the system icons) if no image file has been uploaded for the product. This works fine. I also have a Template Grid which displays all Poducts. The Template Grid also has an image viewer and I have set the default image to display the same icon. However on opening the Template Grid, where a product has no image loaded I get an error on the Console saying 'Error opening file for Image', and it does not display the default image. Why is this? How do I display a default image in a Template Grid? I am using Mendix Thanks.
1 answers

This should work as expected. Can you reproduce the error and file an incident in MXDN?