From c0878ebf4787976f735f18f12ccce3572dd478a0 Mon Sep 17 00:00:00 2001
From: Patrick Grote <patrick.grote@dmxcontrol-projects.org>
Date: Tue, 4 Jun 2024 13:34:10 +0200
Subject: [PATCH] Fix another NPE

---
 ArtNetSharp/Communication/AbstractInstance.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ArtNetSharp/Communication/AbstractInstance.cs b/ArtNetSharp/Communication/AbstractInstance.cs
index bee36af..097bcaa 100644
--- a/ArtNetSharp/Communication/AbstractInstance.cs
+++ b/ArtNetSharp/Communication/AbstractInstance.cs
@@ -1278,7 +1278,7 @@ private async Task triggerSendArtPoll()
 
         private async void TimerSendPoll_Elapsed(object sender, EventArgs e)
         {
-            if (!ArtNetInstance.Instances.Contains(this))
+            if (!(ArtNetInstance?.Instances?.Contains(this) ?? false))
                 return;
 
             await triggerSendArtPoll();