[4.0.0-beta.6] ion-menu-button not working

[doender]

Since beta.6, clicking on a ion-menu-button does not open the menu. For example in:

<ion-header>
    <ion-toolbar color="light">
        <ion-buttons slot="start">
            <ion-menu-button></ion-menu-button>
        </ion-buttons>
        <ion-title>{{ 'DASHBOARD' | translate }}</ion-title>
   </ion-toolbar>
</ion-header>

and in app.component.html:

<ion-app>
  <ion-split-pane [disabled]="!(showSideMenu$ | async)">
    <ion-menu #menu swipeGesture="false">
      <app-sidemenu></app-sidemenu>
    </ion-menu>
    <ion-router-outlet main></ion-router-outlet>
  </ion-split-pane>
</ion-app>

[peterpeterparker]

I'm facing the issue too and could reproduce the problem in a fresh dummy app

ionic start menu --type=angular
choose the menu canvas
update beta.6
ionic serve

[ionitron-bot]

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