From b1a31e87f0aadeb5894939ded01f60f1259657c5 Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <dktapps@pmmp.io>
Date: Sat, 2 Mar 2024 01:02:00 +0000
Subject: [PATCH] It took me 2 hours to find this bug ............

---
 src/generic/SendReliabilityLayer.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/generic/SendReliabilityLayer.php b/src/generic/SendReliabilityLayer.php
index 5234655..9fcf6c5 100644
--- a/src/generic/SendReliabilityLayer.php
+++ b/src/generic/SendReliabilityLayer.php
@@ -207,9 +207,9 @@ private function updateReliableWindow() : void{
 			isset($this->reliableWindow[$this->reliableWindowStart]) && //this messageIndex has been used
 			$this->reliableWindow[$this->reliableWindowStart] === true //we received an ack for this messageIndex
 		){
+			unset($this->reliableWindow[$this->reliableWindowStart]);
 			$this->reliableWindowStart++;
 			$this->reliableWindowEnd++;
-			unset($this->reliableWindow[$this->reliableWindowStart]);
 		}
 	}