There appears to be an issue with some installed files.
If you rename index.html to index_en.html in the following folders, and reopen the catalog, you should see your data after closing:
Code:
%Program Files%\NetObjects\NetObjects Fusion 12.0\NetObjects System\FSI\Ecomm\templates\listpage\Layout0\content
%Program Files%\NetObjects\NetObjects Fusion 12.0\NetObjects System\FSI\Ecomm\templates\listpage\Layout1\content
%Program Files%\NetObjects\NetObjects Fusion 12.0\NetObjects System\FSI\Ecomm\templates\listpage\Layout2\content
%Program Files%\NetObjects\NetObjects Fusion 12.0\NetObjects System\FSI\Ecomm\templates\listpage\Layout3\content