diff --git a/DS4Windows/DS4Control/ControlService.cs b/DS4Windows/DS4Control/ControlService.cs
index 859cecf..15cb363 100644
--- a/DS4Windows/DS4Control/ControlService.cs
+++ b/DS4Windows/DS4Control/ControlService.cs
@@ -695,6 +695,7 @@ namespace DS4Windows
         public bool[] inWarnMonitor = new bool[4] { false, false, false, false };
         private byte[] currentBattery = new byte[4] { 0, 0, 0, 0 };
         private bool[] charging = new bool[4] { false, false, false, false };
+        private string[] tempStrings = new string[4] { string.Empty, string.Empty, string.Empty, string.Empty };
 
         // Called every time a new input report has arrived
         protected virtual void On_Report(object sender, EventArgs e)
@@ -714,9 +715,13 @@ namespace DS4Windows
                 if (getFlushHIDQueue(ind))
                     device.FlushHID();
 
-                if (!string.IsNullOrEmpty(device.error))
+                string devError = tempStrings[ind] = device.error;
+                if (!string.IsNullOrEmpty(devError))
                 {
-                    LogDebug(device.error);
+                    device.getUiContext()?.Post(new SendOrPostCallback(delegate (object state)
+                    {
+                        LogDebug(devError);
+                    }), null);
                 }
 
                 if (inWarnMonitor[ind])
@@ -749,8 +754,9 @@ namespace DS4Windows
 
                 device.getCurrentState(CurrentState[ind]);
                 DS4State cState = CurrentState[ind];
-                device.getPreviousState(PreviousState[ind]);
-                DS4State pState = PreviousState[ind];
+                DS4State pState = device.getPreviousStateRef();
+                //device.getPreviousState(PreviousState[ind]);
+                //DS4State pState = PreviousState[ind];
 
                 if (!device.firstReport && device.IsAlive())
                 {
diff --git a/DS4Windows/DS4Library/DS4Device.cs b/DS4Windows/DS4Library/DS4Device.cs
index b47f698..74a973a 100644
--- a/DS4Windows/DS4Library/DS4Device.cs
+++ b/DS4Windows/DS4Library/DS4Device.cs
@@ -1239,6 +1239,11 @@ namespace DS4Windows
             return cState;
         }
 
+        public DS4State getPreviousStateRef()
+        {
+            return pState;
+        }
+
         private bool isDS4Idle()
         {
             if (cState.Square || cState.Cross || cState.Circle || cState.Triangle)