Symfony: Printing Multiple Forms Per View - symfony

Question

I created a form with builderform. The view shows a list of private messages when you click one of the messages, a modal window opened, all of this works, but when I copy the form into the modal, only the last private message shows this form, others modal windows doesn't print this.
This is my form:
class MessageReplyFormType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('reply', TextareaType::class, array(
'label'=>false,
'required'=>true,
"attr" => array('placeholder'=>'Escribe aquí tu mensaje...')
))
->add('image', FileType::class, [
'label' => false,
'required' => false,
'data_class' => null,
'mapped' => false,
'attr'=>[
'class' => 'input-image',
'lang'=>'es',
'placeholder' => "Subir imagen ..."
],
'constraints' => [ new Image(['maxSize' => '500k'])
]
])
->add('send', SubmitType::class, array(
"label" => 'send',
"attr" => array(
"class" => "form-submit btn btn-default btn-vibrisas btn-reply"
)
))
;
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'data_class' => MessageReply::class,
]);
}
}
Here my view...
<div class="card">
<div class="card-body publications-container">
<h1 class="pub">Mensajes privados</h1>
<hr>
{% for p in private_messages %}
<div class="card message-card">
<div class="card-body message-body" >
<!-- Information about each message -->
</div>
</div>
<!-- The Modal -->
<div id="openMessage-{{ p.id }}" tabindex="-1" class="openMessage modal fade" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<!-- Modal Header -->
<div class="modal-header">
<!-- basic message information -->
</div>
<!-- Modal body -->
<div class="modal-body">
<div class="message-f">
{{ p.emitter.name }}<br>
{{ p.message }}<br>
{% if p.image != null %}
<div class="openImage" data-toggle="modal" data-target="#openImage-{{ p.id }}" href="/uploads/users/messages/{{ p.image }}">
<img class="message-image" src="{{ asset('/uploads/users/messages/'~p.image) }}"/>
</div>
<div id="openImage-{{ p.id }}" class="openImage modal" tabindex="-1" role="dialog">
<div class="modal-dialog modal-dialog-centered">
<div class="modal-content">
<img src="{{ asset('/uploads/users/messages/'~p.image) }}"/>
</div>
</div>
</div>
{% endif %}
</div>
{% form_theme message_reply 'bootstrap_4_layout.html.twig' %}
{{ form_start(message_reply) }}
<input type="text" name="idmessage" required class="form-control border-input hidden" placeholder="" value="{{ p.id }}">
{{ form_end(message_reply) }}
</div>
</div>
</div>
</div>
<!-- end modal -->
{% endfor %}
</div>