No message in queue if i set additionnal properties to my message

Question

I'm using symfony 3.4 with RMQ 3.6.14. I was dealing with additional properties, but surpisingly, the message never reached RMQ server.

I put some debug point everywhere, but i can not explain it. I'm using php-amqlib 2.7.2.

if i do :

$this->producer->publish(
            serialize($batch),
            $importType);

No problem, i can see my message ,

but since i did :

$this->producer->publish(
            serialize($batch),
            $importType,
            array('message_id' => $file->getClientOriginalName(), 'user_id' => (string)$user->getId(), 'app_id' => (string)$brand->getId()));

I can not see it in my queues :( Nb: i configured an exchanger to route my message to different queue according to routing key.

Any idea ? I'm stuck with it.

Have a nice day,

Greg