From a7ed65eb2d3ac90764bb79498b6c87cc9ba29632 Mon Sep 17 00:00:00 2001
From: to11mtm <12536917+to11mtm@users.noreply.github.com>
Date: Sun, 8 Feb 2026 13:26:46 -0500
Subject: [PATCH] fix index check on trygetvalue

---
 .../Internal/IntIndexedMessagePackFormatterDict.cs              | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Akka.Serialization.MessagePack/Internal/IntIndexedMessagePackFormatterDict.cs b/Akka.Serialization.MessagePack/Internal/IntIndexedMessagePackFormatterDict.cs
index c0eec00..5d2dd6d 100644
--- a/Akka.Serialization.MessagePack/Internal/IntIndexedMessagePackFormatterDict.cs
+++ b/Akka.Serialization.MessagePack/Internal/IntIndexedMessagePackFormatterDict.cs
@@ -32,7 +32,7 @@ public bool TryGet(int i, out IMessagePackFormatter? formatter)
         //which does a full fence and then checks state.
         //Shouldn't happen much and only on startup...
         var f = _formatters;
-        if (i > f.Length)
+        if (i >= f.Length)
         {
             formatter = default;
             return false;