Using WP-Table-Reloaded I had an issue where the serialized data wouldn’t return properly.

I found a function that fixed this:

function fixSerialized($sObject) 
{
   $__ret =preg_replace('!s:(\d+):"(.*?)";!e', "'s:'.strlen('$2').':\"$2\";'", $sObject );
   return $__ret;
}