When you render as photoshop file. The icons and the preview becomes black. Now we need to go into photoshop and resave every render to make it work again. Please fix this so we can see what file is what again. :) thanks guys.
Can confirm that this occurs in Win7SP1 as well. When the raw render is done, my PS files are sans-previews, and the file size is about 100 meg. Simply open up in PS, save, and the preview is now included in the file for the icon, and the file size shrinks to about 15 meg. This happened in KS6 and KS7.