VueFinalModel did not open

[bluelemonade]

Version

vue-final-modal: 4.5.4
vue: v3.2.5

simple setup in app.vue

 <div id="content-grid">
....
 </div>

 <VueFinalModal v-if="showModal" class="confirm-modal" content-class="confirm-modal-content" overlay-transition="vfm-fade" content-transition="vfm-fade" >
      <h1>{{ title }}</h1>
      <!-- <slot /> -->
      <!-- <button @click="emit('confirm')"> -->
      <button @click="console.log('hallo')">
        Confirm
      </button>
    </VueFinalModal>

    <ModalsContainer />

ok, in chrome I can toggle the teleport comments, the VueFinalModal didn't toggle, it remains permanently commented out
any ideas?