From ac2f3caf44200bf5a01da1008a84dc169a4d8200 Mon Sep 17 00:00:00 2001
From: Madpeterz <57852827+Madpeterz@users.noreply.github.com>
Date: Fri, 26 Feb 2021 06:18:41 +0000
Subject: [PATCH] Update BetterTracking.cs

---
 BetterSecondbot/Tracking/BetterTracking.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/BetterSecondbot/Tracking/BetterTracking.cs b/BetterSecondbot/Tracking/BetterTracking.cs
index 7248930..cdec02d 100644
--- a/BetterSecondbot/Tracking/BetterTracking.cs
+++ b/BetterSecondbot/Tracking/BetterTracking.cs
@@ -113,7 +113,11 @@ namespace BetterSecondbot.Tracking
                         Thread newThread = new Thread(this.TrackerEventAdd);
                         newThread.Start(A);
                     }
-                    List<UUID> TrackedUUID = AvatarSeen.Keys.ToList();
+                    List<UUID> TrackedUUID = new List<UUID>();
+                    lock (AvatarSeen)
+                    {
+                        TrackedUUID = AvatarSeen.Keys.ToList();
+                    }
                     foreach (UUID A in TrackedUUID)
                     {
                         if(seenavs.Contains(A) == false)