OnPendingOrders Events are not triggered

Hi

I've tried the following code, the positions is executed and then exit on SL/TP but there are no prints. Why?

Thanks

protected override void OnStart()
{
	PendingOrders.Cancelled += OnPendingOrdersCancelled;
	PendingOrders.Created += OnPendingOrdersCreated;
	PendingOrders.Filled += OnPendingOrdersFilled;
	PendingOrders.Modified += OnPendingOrdersModified;
	
	TradeResult tradeResult1 = ExecuteMarketOrder(TradeType.Buy, SymbolName, Symbol.VolumeInUnitsMin, "mylabel", 5, 5);
}

private void OnPendingOrdersCancelled(PendingOrderCancelledEventArgs args)
{
	Print("OnPendingOrdersCancelled " + args.PendingOrder);
}

private void OnPendingOrdersCreated(PendingOrderCreatedEventArgs args)
{
	Print("OnPendingOrdersCreated " + args.PendingOrder);
}

private void OnPendingOrdersFilled(PendingOrderFilledEventArgs args)
{
	Print("OnPendingOrdersFilled " + args.PendingOrder);
}

private void OnPendingOrdersModified(PendingOrderModifiedEventArgs args)
{
	Print("OnPendingOrdersModified " + args.PendingOrder);
}