Angular Custom Control: change event isn't triggered in reactive form

This was working fine for some time until I found out it wasn't. The issue I face is the following.

I have an abstract value accessor class which is being extended by multiple custom form controls. It looks like this:

@Directive()
export abstract class AbstractInputComponent implements OnChanges {

  @Input() public isReadOnly = false;

  protected innerValue: unknown = null;
  public registerOnChange(fn: any) { this.propagateChange = fn; }
  public registerOnTouched(fn: any) { this.propagateTouch = fn; }
  public propagateChange = (_: any) => { };
  public propagateTouch = (_: any) => { };

  public ngOnChanges(): void {
    if ( this.isReadOnly ) {
        this.propagateChange(this.value);
    }
    this.cdr.detectChanges();
  }

  public get value(): any {
    return this.innerValue;
  };

  @Input() public set value(value: any) {
    if ( value !== undefined ) {
        this.writeValue(value);
        this.propagateChange(this.innerValue);
        this.propagateTouch(true);
    }
  }

  public writeValue(value: any): void {
    if (value !== this.innerValue) {
        this.innerValue = this.normalize(value);
    }
  }
}

One of the custom controls looks like this:

@Component({
    selector: 'ultim-checkbox',
    encapsulation: ViewEncapsulation.None,
    templateUrl: './checkbox-input.component.html',
    providers: [
        {
          provide: NG_VALUE_ACCESSOR,
          useExisting: forwardRef( ()=> CheckboxInputComponent ),
          multi: true
        },
        {
          provide: NG_VALIDATORS,
          useExisting: forwardRef( ()=> CheckboxInputComponent ),
          multi: true
        }
      ]
})
export class CheckboxInputComponent extends AbstractInputComponent implements ControlValueAccessor, Validator  {
   constructor ( protected cdr: ChangeDetectorRef ) {
       super(cdr);
   }
}

So, then in the big parent template I have this kind of markup:

<ultim-checkbox formControlName="isAdmin"
    (change)="setAdmin()"></ultim-checkbox>

And setAdmin() method never gets called. Any ideas why?

Angular 11
Typescript 5.1.6