diff --git a/OpenRA.Game/Network/OrderManager.cs b/OpenRA.Game/Network/OrderManager.cs
index 33d9a8c808..640926c3b8 100644
--- a/OpenRA.Game/Network/OrderManager.cs
+++ b/OpenRA.Game/Network/OrderManager.cs
@@ -57,7 +57,9 @@ namespace OpenRA.Network
 		bool generateSyncReport = false;
 		int sentOrdersFrame = 0;
 		float tickScale = 1f;
-		bool outOfSync = false;
+
+		/// <Remarks> Should only be set in <see cref="OutOfSync"/></Remarks>
+		public bool IsOutOfSync { get; private set; } = false;
 
 		public struct ClientOrder
 		{
@@ -72,12 +74,12 @@ namespace OpenRA.Network
 
 		void OutOfSync(int frame)
 		{
-			if (outOfSync)
+			if (IsOutOfSync)
 				return;
 
 			syncReport.DumpSyncReport(frame);
 			World.OutOfSync();
-			outOfSync = true;
+			IsOutOfSync = true;
 
 			TextNotificationsManager.AddSystemLine($"Out of sync in frame {frame}.\nCompare syncreport.log with other players.");
 		}
diff --git a/OpenRA.Game/World.cs b/OpenRA.Game/World.cs
index f76b8f4ce6..49c8f4808b 100644
--- a/OpenRA.Game/World.cs
+++ b/OpenRA.Game/World.cs
@@ -618,6 +618,9 @@ namespace OpenRA
 		public void OutOfSync()
 		{
 			EndGame();
+
+			// In the event the replay goes out of sync, it becomes no longer usable. For polish we permanently pause the world.
+			ReplayTimestep = 0;
 		}
 	}
 
diff --git a/OpenRA.Mods.Common/Widgets/Logic/Ingame/ReplayControlBarLogic.cs b/OpenRA.Mods.Common/Widgets/Logic/Ingame/ReplayControlBarLogic.cs
index c88ea0c674..9aba4f6d56 100644
--- a/OpenRA.Mods.Common/Widgets/Logic/Ingame/ReplayControlBarLogic.cs
+++ b/OpenRA.Mods.Common/Widgets/Logic/Ingame/ReplayControlBarLogic.cs
@@ -45,18 +45,21 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 				var speed = PlaybackSpeed.Regular;
 				var originalTimestep = world.Timestep;
 
+				// In the event the replay goes out of sync, it becomes no longer usable. For polish we permanently pause the world.
+				Func<bool> isWidgetDisabled = () => orderManager.IsOutOfSync || orderManager.NetFrameNumber >= replayNetTicks;
+
 				var pauseButton = widget.Get<ButtonWidget>("BUTTON_PAUSE");
-				pauseButton.IsVisible = () => world.ReplayTimestep != 0 && orderManager.NetFrameNumber < replayNetTicks;
+				pauseButton.IsVisible = () => world.ReplayTimestep != 0 && !isWidgetDisabled();
 				pauseButton.OnClick = () => world.ReplayTimestep = 0;
 
 				var playButton = widget.Get<ButtonWidget>("BUTTON_PLAY");
-				playButton.IsVisible = () => world.ReplayTimestep == 0 || orderManager.NetFrameNumber >= replayNetTicks;
+				playButton.IsVisible = () => world.ReplayTimestep == 0 || isWidgetDisabled();
 				playButton.OnClick = () => world.ReplayTimestep = (int)Math.Ceiling(originalTimestep * multipliers[speed]);
-				playButton.IsDisabled = () => orderManager.NetFrameNumber >= replayNetTicks;
+				playButton.IsDisabled = isWidgetDisabled;
 
 				var slowButton = widget.Get<ButtonWidget>("BUTTON_SLOW");
 				slowButton.IsHighlighted = () => speed == PlaybackSpeed.Slow;
-				slowButton.IsDisabled = () => orderManager.NetFrameNumber >= replayNetTicks;
+				slowButton.IsDisabled = isWidgetDisabled;
 				slowButton.OnClick = () =>
 				{
 					speed = PlaybackSpeed.Slow;
@@ -66,7 +69,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 
 				var normalSpeedButton = widget.Get<ButtonWidget>("BUTTON_REGULAR");
 				normalSpeedButton.IsHighlighted = () => speed == PlaybackSpeed.Regular;
-				normalSpeedButton.IsDisabled = () => orderManager.NetFrameNumber >= replayNetTicks;
+				normalSpeedButton.IsDisabled = isWidgetDisabled;
 				normalSpeedButton.OnClick = () =>
 				{
 					speed = PlaybackSpeed.Regular;
@@ -76,7 +79,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 
 				var fastButton = widget.Get<ButtonWidget>("BUTTON_FAST");
 				fastButton.IsHighlighted = () => speed == PlaybackSpeed.Fast;
-				fastButton.IsDisabled = () => orderManager.NetFrameNumber >= replayNetTicks;
+				fastButton.IsDisabled = isWidgetDisabled;
 				fastButton.OnClick = () =>
 				{
 					speed = PlaybackSpeed.Fast;
@@ -86,7 +89,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 
 				var maximumButton = widget.Get<ButtonWidget>("BUTTON_MAXIMUM");
 				maximumButton.IsHighlighted = () => speed == PlaybackSpeed.Maximum;
-				maximumButton.IsDisabled = () => orderManager.NetFrameNumber >= replayNetTicks;
+				maximumButton.IsDisabled = isWidgetDisabled;
 				maximumButton.OnClick = () =>
 				{
 					speed = PlaybackSpeed.Maximum;