Ion-input element is not clickable on IOS Only

video:

code:

<ion-list  text-wrap formGroupName="doc" class="padding top-box no-margin">
        <div class="white-box-round">
            <ion-item text-wrap no-lines class="inner-white-box">
                <ion-icon color="blue" item-start name="paper"></ion-icon>
                <ion-label color="blue" class="titleBold">פרטי מסמך</ion-label>
            </ion-item>
            <ion-item text-wrap class="inner-white-box">
              <ion-label class="label-form" floating>לכבוד
                  <span class="danger">*</span>
              </ion-label>
              <ion-input type="text" formControlName="docuemntTo" required></ion-input>
            </ion-item>
            <div class="validation-errors">
              <ng-container *ngFor="let validation of validation_messages.docuemntTo" >
              <ion-item no-lines class="error-message" *ngIf="VtDataGroup.get('doc.docuemntTo').hasError(validation.type) && (VtDataGroup.get('doc.docuemntTo').dirty)">
              {{ validation.message }}
              </ion-item>
              </ng-container>
            </div>
            <ion-item text-wrap class="inner-white-box">
              <ion-label class="label-form" floating>תיאור מוצר
                  <span class="danger">*</span>
              </ion-label>
              <ion-input type="text" formControlName="lineDescription" required></ion-input>
            </ion-item>
            <div class="validation-errors">
              <ng-container *ngFor="let validation of validation_messages.lineDescription" >
              <ion-item no-lines class="error-message" *ngIf="VtDataGroup.get('doc.lineDescription').hasError(validation.type) && (VtDataGroup.get('doc.lineDescription').dirty)">
              {{ validation.message }}
              </ion-item>
              </ng-container>
            </div>
</div>
</ion-list>

after a few clicks on input it becomes no clickable. I tried a lot of things, also
IonicModule.forRoot(MyApp,{ scrollAssist: false }),
but nothing helps.

Please help me to resolve this issue.
Thank’s.