I need some help with HHVM on Magento. I just enabled HHVM for my site but I am not able to see any images. It shows only the placeholder image for thumbnail, category and product details page. I am getting the following error in my system.log file.
ERR (3): Warning: imagecopymerge() expects parameter 9 to be long, string given in /public_html/lib/Varien/Image/Adapter/Gd2.php on line 513