Why template is not rendered after receiving new data from serve? : I have request to server:

    this.userService.loadPupils(GlobalModel.getSelectedPeriod().schoolId, this.filter.schoolStudyPeriod, this.pagination.from, this.pagination.to, filters)
          .subscribe(data => {
           
          this.fltUsers = []; 
           this.fltUsers = data;
           console.log(this.fltUsers);
    
    });

In console.log I get two elements (objects) in array `this.fltUsers`.

Then my template is:

     <tr *ngFor="let s of fltUsers; let i = index; let isOdd=odd; let isEven=even">
      </tr>

But I can not see these rows on the page.

[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/B8YHV.png