Ion-virtual-scroll not working inside ngSwitchCase

Ionic:

   Ionic CLI                     : 6.12.3 (C:\Users\EPAMEINONDAS\AppData\Roaming\npm\node_modules\@ionic\cli)
   Ionic Framework               : @ionic/angular 5.5.2
   @angular-devkit/build-angular : 0.1000.8
   @angular-devkit/schematics    : 10.0.8
   @angular/cli                  : 10.0.8
   @ionic/angular-toolkit        : 2.3.3

Capacitor:

   Capacitor CLI   : 3.2.4
   @capacitor/core : 3.2.4

Utility:

   cordova-res : not installed
   native-run  : 1.4.1

System:

   NodeJS : v14.15.0 (C:\Program Files\nodejs\node.exe)
   npm    : 6.14.8
   OS     : Windows 10

Hello every one, i found an error. When I use ionic virtual scroll inside *ngSwitchCase, the console prints this message :

< ion-virtual-scroll > must be used inside an < ion-content >

This is the code :

<ion-content >

  <div [ngSwitch]="selectedSegment" >
    <div *ngSwitchCase="'reviews'" class="reviews">
      <ion-list lines="none">

        <ion-virtual-scroll *ngIf="!isLoadingReviews" [items]="reviews" >
          <div *virtualItem="let review;">

          </div>
        </ion-virtual-scroll>

      </ion-list>
    </div>
  </div>

</ion-content>