Thumbnails Won't Show up on Mimbo theme

I had the same problem, and just found the answer. WordPress changed from using “title” to using “src” in the image URL, and this caused the get_post_image to stop working.

In functions.php in the mimbo theme, look for this block of code.

if(!$matches) {
preg_match(“/<img class\=\”.*\” title\=\”.*\” src\=(‘|\”)(.*)(‘|\”) .*( |)\/>/U”, $the_content, $matches);
}

Just after that block of code, add this, to check for the new way as well.

if(!$matches) {
preg_match(“/<img class\=\”.*\” src\=(‘|\”)(.*)(‘|\”) .*( |)\/>/U”, $the_content, $matches);
}

Hope this helps.