Core/Media/Assets/Image.php

@@ -20,7 +20,7 @@ class Image implements AssetsInterface
 
     public function upload(array $media, array $data)
     {
-        $filename = "/image/{$this->entity->batch_guid}/{$this->entity->guid}/master.jpg";
+        $filename = "image/{$this->entity->batch_guid}/{$this->entity->guid}/master.jpg";
 
         // @note: legacy file handling
         $file = new \ElggFile();

classes/ElggFile.php

@@ -320,4 +320,11 @@ class ElggFile extends ElggObject {
 		return $this->filestore;
 	}
 
+    /**
+     * Executed prior to object serialization
+     */
+    public function __sleep()
+    {
+        unset($this->handle);
+    }
 }