Select component inside modal

Hello MDB Community,

I want to use the new select component inside a modal. The dropdown is not working like accepted. Generally it's there and I can select the values with the mouse keys, but if I'm clicking with the mouse the dropdown isn't appearing.

Snippet

<button type="button" mdbBtn color="primary" class="relative waves-light" (click)="basicModal.show()" mdbWavesEffect>Launch demo modal</button>

<div mdbModal #basicModal="mdbModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myBasicModalLabel" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close pull-right" aria-label="Close" (click)="basicModal.hide()">
          <span aria-hidden="true">×</span>
        </button>
        <h4 class="modal-title w-100" id="myModalLabel">Modal title</h4>
      </div>
      <div class="modal-body">
        <div class="md-form">
          <mdb-select-2 [multiple]="true" placeholder="Choose your option" label="Example label">
            <mdb-select-option *ngFor="let option of options" [value]="option.value">{{ option.label }}</mdb-select-option>
          </mdb-select-2>
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" mdbBtn color="secondary" class="waves-light" aria-label="Close" (click)="basicModal.hide()" mdbWavesEffect>Close</button>
        <button type="button" mdbBtn color="primary" class="relative waves-light" mdbWavesEffect>Save changes</button>
      </div>
    </div>
  </div>
</div>

Thanks for helping.