When saving files using Photoshop CS6 I randomly receive an error message that states 'Could not save image_name.tif' because of a program error'. Sometimes a save-as works but not guaranteed. The file is being saved to a mounted server volume and sometimes the only way to get the file on the server is to save to the desktop and then copy the file back to the server. The error message does not appear on any other Adobe applications, just Photoshop.
Moved from the Creative Cloud to the Photoshop forum. They will be able to help you here.