I fixed this. its a problem with compatiablityu with Ultimate Recipes. I removed this line from thumbnail.php in Ultimate recipes
[code]
if( $thumb == ‘never’ || ( $thumb == ‘archive’ && is_single() ) || ( $thumb == ‘recipe’ && !is_single() ) ) {
$html = ”; // Hide theme thumbnail
}
[/code]
now it works but im unsure what the above code was wrong and how to correct it any pointers?