Two sidemenus: Left opens when item in right selected

I added two sidemenus with the following code:

<ion-menu contentId="content" menuId="left">
  <ion-content>
     <ion-list no-padding>
       <ion-menu-toggle auto-hide="false" *ngFor="let p of leftItems">
          ...
       </ion-menu-toggle>
     </ion-list>
  </ion-content>
</ion-menu>

<ion-menu side="end" contentId="content" menuId="right">
  <ion-content>
     <ion-list no-padding>
       <ion-menu-toggle auto-hide="false" *ngFor="let p of rightItems">
          ...
       </ion-menu-toggle>
     </ion-list>
  </ion-content>
</ion-menu>

When an item of the right menu is selected, the right menu closes, but the left opens. What could be my problem? Thanks in advance!

Add in the of the right side the menuID like:

<ion-menu-toggle auto-hide="false" menu="right">
  ...
</ion-menu-toggle>