Multiple Select affects other tag

Is this a bug?
#1

Hi guys!, today was the first time I use Select2, I was really interested about the multiple select and it worked with only a little bug I want to fix.

As you see It shows the options, but, in the moment I select one the input below moves at its right side:

image
image1670×330 37.5 KB

Here some example I use for this:

Select tag:

<div class="form-group col-sm-3 has-feedback" id="gtipoformulario">
                    <label class="control-label" for="itipoformulario">Tipo de Formulario</label>
                    <select class="form-control js-example-basic-multiple" id="iNtipoformulario" name="itipoformulario[]" multiple="multiple">
                        <option value="">TODOS</option>
                        <?php foreach ($tRCE as $tmp): ?>
                            <option value="<?= $tmp->rcet_id ?>"><?= $tmp->rcet_descripcion ?></option>
                        <?php endforeach ?>
                    </select>
                </div>

Below tag:

<div class="form-group col-sm-3 has-feedback" id="gespecialidad">
                    <label class="control-label" for="iespecialidad">Especialidad</label>
                    <select class="form-control" id="iNespecialidad" name="iespecialidad">
                        <option value="">TODOS</option>
                        <?php foreach ($tejeRCE as $tmp): ?>
                            <option value="<?= $tmp->rtp_id ?>"><?= $tmp->rtp_nombre ?></option>
                        <?php endforeach ?>
                    </select>
                </div>

I want to preserve the original localization of the below input without sacrifice the multiple select2 style.

Can you help me?