From 6bf84488fe608af8215470fcca53f465703170fa Mon Sep 17 00:00:00 2001
From: ASoppelsa <anton.soppelsa@enerways.eu>
Date: Thu, 14 May 2026 15:03:58 +0200
Subject: [PATCH] Update MqttClient.cpp

Fixed a bug with message DUP field
---
 src/MqttClient.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/MqttClient.cpp b/src/MqttClient.cpp
index 221b230..c7fbd90 100644
--- a/src/MqttClient.cpp
+++ b/src/MqttClient.cpp
@@ -473,7 +473,7 @@ void MqttClient::poll()
           }
 
           if (_rxType == MQTT_PUBLISH) {
-            _rxMessageDup = (_rxFlags & 0x80) != 0;
+            _rxMessageDup = (_rxFlags & 0x08) != 0;
             _rxMessageQoS = (_rxFlags >> 1) & 0x03;
             _rxMessageRetain = (_rxFlags & 0x01);