diff --git a/MediaBrowser.Api/Library/LibraryStructureService.cs b/MediaBrowser.Api/Library/LibraryStructureService.cs
index c964b55171..7759073798 100644
--- a/MediaBrowser.Api/Library/LibraryStructureService.cs
+++ b/MediaBrowser.Api/Library/LibraryStructureService.cs
@@ -28,8 +28,8 @@ namespace MediaBrowser.Api.Library
         public string UserId { get; set; }
     }
 
-    [Route("/Library/VirtualFolders/{Name}", "POST")]
-    [Route("/Users/{UserId}/VirtualFolders/{Name}", "POST")]
+    [Route("/Library/VirtualFolders", "POST")]
+    [Route("/Users/{UserId}/VirtualFolders", "POST")]
     public class AddVirtualFolder : IReturnVoid
     {
         /// <summary>
@@ -57,8 +57,8 @@ namespace MediaBrowser.Api.Library
         public bool RefreshLibrary { get; set; }
     }
 
-    [Route("/Library/VirtualFolders/{Name}", "DELETE")]
-    [Route("/Users/{UserId}/VirtualFolders/{Name}", "DELETE")]
+    [Route("/Library/VirtualFolders", "DELETE")]
+    [Route("/Users/{UserId}/VirtualFolders", "DELETE")]
     public class RemoveVirtualFolder : IReturnVoid
     {
         /// <summary>
@@ -80,8 +80,8 @@ namespace MediaBrowser.Api.Library
         public bool RefreshLibrary { get; set; }
     }
 
-    [Route("/Library/VirtualFolders/{Name}/Name", "POST")]
-    [Route("/Users/{UserId}/VirtualFolders/{Name}/Name", "POST")]
+    [Route("/Library/VirtualFolders/Name", "POST")]
+    [Route("/Users/{UserId}/VirtualFolders/Name", "POST")]
     public class RenameVirtualFolder : IReturnVoid
     {
         /// <summary>
@@ -109,8 +109,8 @@ namespace MediaBrowser.Api.Library
         public bool RefreshLibrary { get; set; }
     }
 
-    [Route("/Library/VirtualFolders/{Name}/Paths", "POST")]
-    [Route("/Users/{UserId}/VirtualFolders/{Name}/Paths", "POST")]
+    [Route("/Library/VirtualFolders/Paths", "POST")]
+    [Route("/Users/{UserId}/VirtualFolders/Paths", "POST")]
     public class AddMediaPath : IReturnVoid
     {
         /// <summary>
@@ -138,8 +138,8 @@ namespace MediaBrowser.Api.Library
         public bool RefreshLibrary { get; set; }
     }
 
-    [Route("/Library/VirtualFolders/{Name}/Paths", "DELETE")]
-    [Route("/Users/{UserId}/VirtualFolders/{Name}/Paths", "DELETE")]
+    [Route("/Library/VirtualFolders/Paths", "DELETE")]
+    [Route("/Users/{UserId}/VirtualFolders/Paths", "DELETE")]
     public class RemoveMediaPath : IReturnVoid
     {
         /// <summary>
@@ -243,6 +243,11 @@ namespace MediaBrowser.Api.Library
         /// <param name="request">The request.</param>
         public void Post(AddVirtualFolder request)
         {
+            if (string.IsNullOrWhiteSpace(request.Name))
+            {
+                throw new ArgumentNullException("request");
+            }
+
             var name = _fileSystem.GetValidFilename(request.Name);
 
             string rootFolderPath;
@@ -307,6 +312,16 @@ namespace MediaBrowser.Api.Library
         /// <param name="request">The request.</param>
         public void Post(RenameVirtualFolder request)
         {
+            if (string.IsNullOrWhiteSpace(request.Name))
+            {
+                throw new ArgumentNullException("request");
+            }
+
+            if (string.IsNullOrWhiteSpace(request.NewName))
+            {
+                throw new ArgumentNullException("request");
+            }
+
             string rootFolderPath;
 
             if (string.IsNullOrEmpty(request.UserId))
@@ -380,6 +395,11 @@ namespace MediaBrowser.Api.Library
         /// <param name="request">The request.</param>
         public void Delete(RemoveVirtualFolder request)
         {
+            if (string.IsNullOrWhiteSpace(request.Name))
+            {
+                throw new ArgumentNullException("request");
+            }
+
             string rootFolderPath;
 
             if (string.IsNullOrEmpty(request.UserId))
@@ -435,6 +455,11 @@ namespace MediaBrowser.Api.Library
         /// <param name="request">The request.</param>
         public void Post(AddMediaPath request)
         {
+            if (string.IsNullOrWhiteSpace(request.Name))
+            {
+                throw new ArgumentNullException("request");
+            }
+
             _directoryWatchers.Stop();
 
             try
@@ -476,6 +501,11 @@ namespace MediaBrowser.Api.Library
         /// <param name="request">The request.</param>
         public void Delete(RemoveMediaPath request)
         {
+            if (string.IsNullOrWhiteSpace(request.Name))
+            {
+                throw new ArgumentNullException("request");
+            }
+
             _directoryWatchers.Stop();
 
             try
diff --git a/MediaBrowser.Controller/Entities/User.cs b/MediaBrowser.Controller/Entities/User.cs
index a2c7bcb576..0a935cd0de 100644
--- a/MediaBrowser.Controller/Entities/User.cs
+++ b/MediaBrowser.Controller/Entities/User.cs
@@ -1,5 +1,4 @@
 using MediaBrowser.Common.Configuration;
-using MediaBrowser.Controller.IO;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Model.Configuration;
 using MediaBrowser.Model.Serialization;
diff --git a/MediaBrowser.Providers/MediaBrowser.Providers.csproj b/MediaBrowser.Providers/MediaBrowser.Providers.csproj
index 60a3ec1634..94d171ce14 100644
--- a/MediaBrowser.Providers/MediaBrowser.Providers.csproj
+++ b/MediaBrowser.Providers/MediaBrowser.Providers.csproj
@@ -168,7 +168,7 @@
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <EmbeddedResource Include="Studios\backdrops.txt" />
+    <EmbeddedResource Include="Studios\thumbs.txt" />
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="Studios\posters.txt" />
diff --git a/MediaBrowser.Providers/Studios/StudioImageProvider.cs b/MediaBrowser.Providers/Studios/StudioImageProvider.cs
index 7bb98a87c3..6a351b6886 100644
--- a/MediaBrowser.Providers/Studios/StudioImageProvider.cs
+++ b/MediaBrowser.Providers/Studios/StudioImageProvider.cs
@@ -49,7 +49,7 @@ namespace MediaBrowser.Providers.Studios
 
         protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
         {
-            if (!string.IsNullOrEmpty(item.PrimaryImagePath) && item.BackdropImagePaths.Count == 0)
+            if (item.HasImage(ImageType.Primary) && item.HasImage(ImageType.Thumb))
             {
                 return false;
             }
@@ -75,13 +75,16 @@ namespace MediaBrowser.Providers.Studios
 
         public override async Task<bool> FetchAsync(BaseItem item, bool force, BaseProviderInfo providerInfo, CancellationToken cancellationToken)
         {
-            if (string.IsNullOrEmpty(item.PrimaryImagePath) || item.BackdropImagePaths.Count == 0)
+            if (item.HasImage(ImageType.Primary) && item.HasImage(ImageType.Thumb))
             {
-                var images = await _providerManager.GetAvailableRemoteImages(item, cancellationToken, StudiosManualImageProvider.ProviderName).ConfigureAwait(false);
-
-                await DownloadImages(item, images.ToList(), cancellationToken).ConfigureAwait(false);
+                SetLastRefreshed(item, DateTime.UtcNow, providerInfo);
+                return true;
             }
 
+            var images = await _providerManager.GetAvailableRemoteImages(item, cancellationToken, StudiosManualImageProvider.ProviderName).ConfigureAwait(false);
+
+            await DownloadImages(item, images.ToList(), cancellationToken).ConfigureAwait(false);
+
             SetLastRefreshed(item, DateTime.UtcNow, providerInfo);
             return true;
         }
@@ -96,6 +99,12 @@ namespace MediaBrowser.Providers.Studios
                 {
                     await SaveImage(item, images, ImageType.Primary, cancellationToken).ConfigureAwait(false);
                 }
+                cancellationToken.ThrowIfCancellationRequested();
+
+                if (!item.HasImage(ImageType.Thumb))
+                {
+                    await SaveImage(item, images, ImageType.Thumb, cancellationToken).ConfigureAwait(false);
+                }
             }
 
             if (!item.LockedFields.Contains(MetadataFields.Backdrops))
diff --git a/MediaBrowser.Providers/Studios/StudiosManualImageProvider.cs b/MediaBrowser.Providers/Studios/StudiosManualImageProvider.cs
index 8255c6d560..49f5520933 100644
--- a/MediaBrowser.Providers/Studios/StudiosManualImageProvider.cs
+++ b/MediaBrowser.Providers/Studios/StudiosManualImageProvider.cs
@@ -51,7 +51,7 @@ namespace MediaBrowser.Providers.Studios
 
             if (backdrops)
             {
-                //list.Add(GetImage(item, "backdrops.txt", ImageType.Backdrop, "backdrop"));
+                list.Add(GetImage(item, "thumbs.txt", ImageType.Thumb, "thumb"));
             }
             
             return Task.FromResult(list.Where(i => i != null));
diff --git a/MediaBrowser.Providers/Studios/backdrops.txt b/MediaBrowser.Providers/Studios/thumbs.txt
similarity index 100%
rename from MediaBrowser.Providers/Studios/backdrops.txt
rename to MediaBrowser.Providers/Studios/thumbs.txt
diff --git a/MediaBrowser.WebDashboard/ApiClient.js b/MediaBrowser.WebDashboard/ApiClient.js
index 18c0079626..274be16b9f 100644
--- a/MediaBrowser.WebDashboard/ApiClient.js
+++ b/MediaBrowser.WebDashboard/ApiClient.js
@@ -1328,10 +1328,9 @@ MediaBrowser.ApiClient = function ($, navigator, JSON, WebSocket, setTimeout, wi
 
             var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";
 
-            url += "/" + name;
-
             url = self.getUrl(url, {
-                refreshLibrary: refreshLibrary ? true : false
+                refreshLibrary: refreshLibrary ? true : false,
+                name: name
             });
 
             return self.ajax({
@@ -1357,10 +1356,10 @@ MediaBrowser.ApiClient = function ($, navigator, JSON, WebSocket, setTimeout, wi
             }
 
             options.refreshLibrary = refreshLibrary ? true : false;
+            options.name = name;
 
             var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";
 
-            url += "/" + name;
             url = self.getUrl(url, options);
 
             return self.ajax({
@@ -1381,11 +1380,12 @@ MediaBrowser.ApiClient = function ($, navigator, JSON, WebSocket, setTimeout, wi
 
             var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";
 
-            url += "/" + name + "/Name";
+            url += "/Name";
 
             url = self.getUrl(url, {
                 refreshLibrary: refreshLibrary ? true : false,
-                newName: newName
+                newName: newName,
+                name: name
             });
 
             return self.ajax({
@@ -1410,11 +1410,12 @@ MediaBrowser.ApiClient = function ($, navigator, JSON, WebSocket, setTimeout, wi
 
             var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";
 
-            url += "/" + virtualFolderName + "/Paths";
+            url += "/Paths";
 
             url = self.getUrl(url, {
                 refreshLibrary: refreshLibrary ? true : false,
-                path: mediaPath
+                path: mediaPath,
+                name: virtualFolderName
             });
 
             return self.ajax({
@@ -1439,11 +1440,12 @@ MediaBrowser.ApiClient = function ($, navigator, JSON, WebSocket, setTimeout, wi
 
             var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";
 
-            url += "/" + virtualFolderName + "/Paths";
+            url += "/Paths";
 
             url = self.getUrl(url, {
                 refreshLibrary: refreshLibrary ? true : false,
-                path: mediaPath
+                path: mediaPath,
+                name: virtualFolderName
             });
 
             return self.ajax({
diff --git a/MediaBrowser.WebDashboard/packages.config b/MediaBrowser.WebDashboard/packages.config
index e36a72adfa..4cc0c4d551 100644
--- a/MediaBrowser.WebDashboard/packages.config
+++ b/MediaBrowser.WebDashboard/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="MediaBrowser.ApiClient.Javascript" version="3.0.212" targetFramework="net45" />
+  <package id="MediaBrowser.ApiClient.Javascript" version="3.0.213" targetFramework="net45" />
 </packages>
\ No newline at end of file