diff --git a/OneDrive-Cloud-Player/Package.appxmanifest b/OneDrive-Cloud-Player/Package.appxmanifest
index 0a335eb..3532abd 100644
--- a/OneDrive-Cloud-Player/Package.appxmanifest
+++ b/OneDrive-Cloud-Player/Package.appxmanifest
@@ -9,7 +9,7 @@
   <Identity
     Name="22674TimGels.OneDriveCloudPlayer"
     Publisher="CN=3095B4D2-D597-43C2-BFA6-AC26DB73293D"
-    Version="1.2.0.0" />
+    Version="1.2.1.0" />
 
   <mp:PhoneIdentity PhoneProductId="329101d2-9ad1-4065-a890-d72be5ed3714" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>
 
diff --git a/OneDrive-Cloud-Player/Services/Helpers/CacheHelper.cs b/OneDrive-Cloud-Player/Services/Helpers/CacheHelper.cs
index 51274c0..0e8b650 100644
--- a/OneDrive-Cloud-Player/Services/Helpers/CacheHelper.cs
+++ b/OneDrive-Cloud-Player/Services/Helpers/CacheHelper.cs
@@ -6,6 +6,7 @@
 using OneDrive_Cloud_Player.Services.Utilities;
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
@@ -454,8 +455,9 @@ public CachedDriveItem ConvertGraphItem(DriveItem GraphItem)
                 return null;
             }
 
+            //TODO: Remove the mkv extension workaround when Graph is fixed or a better solution is implemented.
             // Check that files have the correct mimetype (either contains audio or video).
-            if (GraphItem.File != null && !(GraphItem.File.MimeType.Contains("video") || GraphItem.File.MimeType.Contains("audio")))
+            if (GraphItem.File != null && !(GraphItem.File.MimeType.Contains("video") || GraphItem.File.MimeType.Contains("audio") || Path.GetExtension(GraphItem.Name).Equals(".mkv")))
             {
                 return null;
             }