diff --git a/BetterGenshinImpact/Core/Recognition/OCR/PaddleOcrService.cs b/BetterGenshinImpact/Core/Recognition/OCR/PaddleOcrService.cs
index 1d084d3c..2dc7a648 100644
--- a/BetterGenshinImpact/Core/Recognition/OCR/PaddleOcrService.cs
+++ b/BetterGenshinImpact/Core/Recognition/OCR/PaddleOcrService.cs
@@ -6,6 +6,7 @@ using Sdcb.PaddleOCR.Models;
 using System;
 using System.Diagnostics;
 using System.IO;
+using static Vanara.PInvoke.Gdi32;
 
 namespace BetterGenshinImpact.Core.Recognition.OCR;
 
@@ -68,6 +69,16 @@ public class PaddleOcrService : IOcrService
     }
 
     public PaddleOcrResult OcrResult(Mat mat)
+    {
+        if (mat.Channels() == 4)
+        {
+            using var mat3 = mat.CvtColor(ColorConversionCodes.BGRA2BGR);
+            return _OcrResult(mat3);
+        }
+        return _OcrResult(mat);
+    }
+
+    private PaddleOcrResult _OcrResult(Mat mat)
     {
         lock (locker)
         {
diff --git a/Fischless.GameCapture/Graphics/GraphicsCapture.cs b/Fischless.GameCapture/Graphics/GraphicsCapture.cs
index 395b746a..10c5f8c1 100644
--- a/Fischless.GameCapture/Graphics/GraphicsCapture.cs
+++ b/Fischless.GameCapture/Graphics/GraphicsCapture.cs
@@ -312,18 +312,18 @@ public class GraphicsCapture : IGameCapture
         IsCapturing = false;
 
         // 释放最新帧
-        // _frameAccessLock.EnterWriteLock();
-        // try
-        // {
-        //     _latestFrame?.Dispose();
-        //     _latestFrame = null;
-        // }
-        // finally
-        // {
-        //     _frameAccessLock.ExitWriteLock();
-        // }
-        //
-        // _frameAccessLock.Dispose();
+        _frameAccessLock.EnterWriteLock();
+        try
+        {
+            _latestFrame?.Dispose();
+            _latestFrame = null;
+        }
+        finally
+        {
+            _frameAccessLock.ExitWriteLock();
+        }
+
+        _frameAccessLock.Dispose();
     }
 
     private void CaptureItemOnClosed(GraphicsCaptureItem sender, object args)
diff --git a/Fischless.GameCapture/Graphics/Helpers/Direct3D11Helper.cs b/Fischless.GameCapture/Graphics/Helpers/Direct3D11Helper.cs
index 6a831f30..ca1f0449 100644
--- a/Fischless.GameCapture/Graphics/Helpers/Direct3D11Helper.cs
+++ b/Fischless.GameCapture/Graphics/Helpers/Direct3D11Helper.cs
@@ -46,9 +46,11 @@ public static class Direct3D11Helper
         return CreateDevice(false);
     }
 
+    private static SharpDX.Direct3D11.Device? d3dDevice;
+
     public static IDirect3DDevice CreateDevice(bool useWARP)
     {
-        var d3dDevice = new SharpDX.Direct3D11.Device(
+        d3dDevice ??= new SharpDX.Direct3D11.Device(
             useWARP ? SharpDX.Direct3D.DriverType.Software : SharpDX.Direct3D.DriverType.Hardware,
             SharpDX.Direct3D11.DeviceCreationFlags.BgraSupport);
         var device = CreateDirect3DDeviceFromSharpDXDevice(d3dDevice);