Filter on child grid not working

[Nikola7i]

Hi,
I have master form and 3 child grid on tab. 2 child pass value fine, but one grid not refresh. I look many times to find difference, the value is passed but grid is not refresh on load and show all records.

On getGridCanLoad() - I check exist of value and it's there.

Why grid is not refresh ?
Please help

ON GRID:

 protected getInitialTitle() {
        return null;
    }

    protected usePager() {
        return false;
    }

    protected getGridCanLoad() {
        return this.OsnovnoId != null;
    }

    private _OsnovnoId: number;

    get OsnovnoId() {
        return this._OsnovnoId;
    }

    set OsnovnoId(value: number) {
        if (this._OsnovnoId != value) {
            this._OsnovnoId = value;
            this.setEquality(ZaposleniciZaduzenjaRow.Fields.OsnovnoId, value);
            this.refresh();
        }
    }

ON DIALOG:
private ZaduzenjaDGrid: ZaduzenjaZaposlenikaGrid;
private ServisDGrid: ServisOGrid;
private KarticaDGrid: KarticaGrid;

this.ZaduzenjaDGrid = new ZaduzenjaZaposlenikaGrid(this.byId("ZaduzenjeZapGrid"));
this.tabs.on('tabsactivate', (e, i) => {
this.arrange();
});
this.ServisDGrid = new ServisOGrid(this.byId("ServisOGrid"));
this.tabs.on('tabsactivate', (e, i) => {
this.arrange();
});
this.KarticaDGrid = new KarticaGrid(this.byId("KarticaGrid"));
this.tabs.on('tabsactivate', (e, i) => {
this.arrange();
});

protected afterLoadEntity() {
super.afterLoadEntity();

        this.ServisDGrid.OsnovnoId          = this.entityId;
        this.KarticaDGrid.OsnovnoId         = this.entityId;
        this.ZaduzenjaDGrid.OsnovnoId   = this.entityId;

    }