Buy Signals not Executing on IBC and TWS

IBController
1

Hello - I am new to IBC and have been paper testing my code to make sure commands are getting through before I go live. For simplicity, I have been testing the commands using a simple buy/sell strategy since my goal is to make sure alerts are transmitted. My goal is to use this to run through an entire watchlist of 20+ tickers, however, I keep running into the same issue. IBC is not receiving all my buy alerts. Only 8 will get through and then passed on to IB. I have changed the watchlist in size several times but the limit of 8 tickers is never solved. So for a list of 20 buy signals, only 8 are coming through.

Any idea what I am doing wrong? Thanks

Buy = TimeNum() <= 143000;
Sell = TimeNum() >= 143500;

AlertIF( Buy, "SOUND C:\\Windows\\Media\\Ding.wav", "Audio alert", 2 );

Quantity =  10; //Currently using 10 shares to trade low numbers and test IB. Then need to revert back to this algo: (CashBalance * Position3)/LastValue(C);
Quantity = Max(1, round(Quantity));
SetPositionSize (Quantity, spsShares); //we would change this to intrgate Position3 Static Var

Stopper = Optimize ("TrailingStop", 2.5, 0.5, 3, 0.5);
ApplyStop( stopTypeTrailing, stopModePercent, Stopper, True );
TrailingAmount = Stopper/100 * LastValue(C);

Symbol = Name();

//if (LastValue(Buy) || LastValue(Sell)) {
	ibc = GetTradingInterface( "IB" );
	 
	if (ibc.IsConnected() ) {
	    //openPosList = ibc.GetPositionList();
		pos = ibc.GetPositionSize(Symbol);
		pendingOrderId = StaticVarGetText("pendingOrderIdKey");
		
		BuyOrderID = StaticVarGetText("BuyOrderID"); 
		SellOrderID = StaticVarGetText("SellOrderID"); 
		BuyPending = ibc.IsOrderPending(BuyOrderID); 
		SellPending = ibc.IsOrderPending(SellOrderID); 


			if( NOT BuyPending ) StaticVarSetText("BuyOrderID",""); 
			if( NOT SellPending ) StaticVarSetText("SellOrderID",""); 
	 
if (LastValue(Sell) AND SellOrderID == "") {
			if (pos > 0) {
					SellOrderID = ibc.PlaceOrder( Symbol, "Sell", Quantity, "MKT", LastValue(C), 0, "GTC", False, 1000 );
					StaticVarSetText("SellOrderID",SellOrderID); 
			}
		}
		else if (LastValue(Buy) AND BuyOrderID == "") {
			if (pos == 0){
				if (NOT ibc.IsOrderPending(pendingOrderId)){
					CashBalance = StrToNum(ibc.GetAccountValue("CashBalance"));
					BuyOrderID = ibc.PlaceOrder( Symbol, "Buy", Quantity, "MKT", 0, 0, "Day", False, 1000 );
					ibc.PlaceOrder(Symbol, "Sell", Quantity, "TRAIL", 0, Trailingamount, "Day", False, 1000, BuyOrderID);
					StaticVarSetText("BuyOrderID",BuyOrderID); 
				}
			}
			else {
				_TRACE("Order for "+symbol+" already exists!");
			}
		}
	}
	else {
	Error("IB Controller Interface is not connected");
	}
	
//}