From 6fec65cd6a7b0374fca60d44cbe927f9b50ce307 Mon Sep 17 00:00:00 2001
From: JKorf <jankorf91@gmail.com>
Date: Sun, 23 Aug 2026 20:36:47 +0200
Subject: [PATCH] Fixed failed ISymbolOrderBook start potentially leaving a
 pending background task

---
 CryptoExchange.Net/OrderBook/SymbolOrderBook.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CryptoExchange.Net/OrderBook/SymbolOrderBook.cs b/CryptoExchange.Net/OrderBook/SymbolOrderBook.cs
index 9ead7c56..1a663bae 100644
--- a/CryptoExchange.Net/OrderBook/SymbolOrderBook.cs
+++ b/CryptoExchange.Net/OrderBook/SymbolOrderBook.cs
@@ -289,6 +289,7 @@ namespace CryptoExchange.Net.OrderBook
             if (!startResult.Success)
             {
                 Status = OrderBookStatus.Disconnected;
+                _queueEvent.Set();
                 return CallResult.Fail(startResult.Error!);
             }