"tabbedpanel" panel doesn`t display in AE 13.2

I`m trying to figure out why this code doesn`t display in AE CC 13.2 ( but in works fine in lower versions ).

I`ve tried several variants but none of them worked properly.

{
function scriptUIPanel(thisObj){


var myWin = (thisObj instanceof Panel) ? thisObj : new Window("palette", "myWin", undefined);


var myTab=myWin.add("tabbedpanel",undefined,"My Tab Panel");
myTab.alignment = "fill";
var tabCont1=myTab.add("tab",undefined,"Tab 1");
var tabCont2=myTab.add("tab",undefined,"Tab 2");


return myWin;
myWin.center();
}
scriptUIPanel(this)
}