diff --git a/Barotrauma/BarotraumaServer/ServerSource/Networking/GameServer.cs b/Barotrauma/BarotraumaServer/ServerSource/Networking/GameServer.cs
index d3aa1d893..3cacc8013 100644
--- a/Barotrauma/BarotraumaServer/ServerSource/Networking/GameServer.cs
+++ b/Barotrauma/BarotraumaServer/ServerSource/Networking/GameServer.cs
@@ -1218,7 +1218,7 @@ namespace Barotrauma.Networking
 
             errorLines.Add("");
             errorLines.Add("EntitySpawner events:");
-            foreach (var entityEvent in entityEventManager.UniqueEvents)
+            foreach (var entityEvent in entityEventManager.UniqueEvents.ToList())
             {
                 if (entityEvent.Entity is EntitySpawner)
                 {
diff --git a/Barotrauma/BarotraumaShared/SharedSource/Characters/HumanPrefab.cs b/Barotrauma/BarotraumaShared/SharedSource/Characters/HumanPrefab.cs
index 67b0141e4..04bb60aa3 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/Characters/HumanPrefab.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/Characters/HumanPrefab.cs
@@ -282,7 +282,7 @@ namespace Barotrauma
 #if SERVER
             if (GameMain.Server != null && Entity.Spawner != null && createNetworkEvents)
             {
-                if (GameMain.Server.EntityEventManager.UniqueEvents.Any(ev => ev.Entity == item))
+                if (GameMain.Server.EntityEventManager.UniqueEvents.ToList().Any(ev => ev.Entity == item))
                 {
                     string errorMsg = $"Error while spawning job items. Item {item.Name} created network events before the spawn event had been created.";
                     DebugConsole.ThrowError(errorMsg);
diff --git a/Barotrauma/BarotraumaShared/SharedSource/Characters/Jobs/Job.cs b/Barotrauma/BarotraumaShared/SharedSource/Characters/Jobs/Job.cs
index 8ea5d7839..0e3e8ae0a 100644
--- a/Barotrauma/BarotraumaShared/SharedSource/Characters/Jobs/Job.cs
+++ b/Barotrauma/BarotraumaShared/SharedSource/Characters/Jobs/Job.cs
@@ -170,7 +170,7 @@ namespace Barotrauma
 #if SERVER
             if (GameMain.Server != null && Entity.Spawner != null)
             {
-                if (GameMain.Server.EntityEventManager.UniqueEvents.Any(ev => ev.Entity == item))
+                if (GameMain.Server.EntityEventManager.UniqueEvents.ToList().Any(ev => ev.Entity == item))
                 {
                     string errorMsg = $"Error while spawning job items. Item {item.Name} created network events before the spawn event had been created.";
                     DebugConsole.ThrowError(errorMsg);