diff --git a/AcManager.Controls/Services/TimeSliderService.cs b/AcManager.Controls/Services/TimeSliderService.cs
index c45ae5ebe..3e3ee5f8b 100644
--- a/AcManager.Controls/Services/TimeSliderService.cs
+++ b/AcManager.Controls/Services/TimeSliderService.cs
@@ -2,7 +2,6 @@
 using System.Windows.Controls;
 using AcManager.Tools.Data;
 using AcTools;
-using AcTools.Utils;
 
 namespace AcManager.Controls.Services {
     public static class TimeSliderService {
diff --git a/AcManager.Tools/Data/PatchVersionInfo.cs b/AcManager.Tools/Data/PatchVersionInfo.cs
index fd69e0555..21de21f1a 100644
--- a/AcManager.Tools/Data/PatchVersionInfo.cs
+++ b/AcManager.Tools/Data/PatchVersionInfo.cs
@@ -442,6 +442,11 @@ await Task.Run(() => {
                             toRemove.Add(shadersDirectory);
                         }
 
+                        var shadersPack = Path.Combine(PatchHelper.GetRootDirectory(), "shaders.zip");
+                        if (File.Exists(shadersPack)) {
+                            toRemove.Add(shadersPack);
+                        }
+
                         FileUtils.Recycle(toRemove.ToArray());
                     }).ConfigureAwait(false);
                 } else {
diff --git a/AcManager.Tools/Objects/UserChampionshipObject.cs b/AcManager.Tools/Objects/UserChampionshipObject.cs
index 7c2baf97d..3ab0c0353 100644
--- a/AcManager.Tools/Objects/UserChampionshipObject.cs
+++ b/AcManager.Tools/Objects/UserChampionshipObject.cs
@@ -878,6 +878,7 @@ private void LoadExtended() {
                 CoherentTime = json.GetBoolValueOnly("coherentTime") ?? false;
                 RealConditions = json.GetBoolValueOnly("realConditions") ?? false;
                 RealConditionsManualTime = json.GetBoolValueOnly("realConditionsManualTime") ?? false;
+                TimeMultiplier = json.GetIntValueOnly("timeMultiplier", 1);
 
                 Author = json.GetStringValueOnly("author")?.Trim();
                 Version = json.GetStringValueOnly("version")?.Trim();
@@ -922,6 +923,7 @@ private void SaveExtended() {
             json.SetNonDefault("coherentTime", CoherentTime);
             json.SetNonDefault("realConditions", RealConditions);
             json.SetNonDefault("realConditionsManualTime", RealConditionsManualTime);
+            json.SetNonDefault("timeMultiplier", TimeMultiplier, 1);
             json.SetNonDefault("author", Author);
             json.SetNonDefault("version", Version);
             json.SetNonDefault("url", Url);
diff --git a/AcManager/Pages/Dialogs/GameDialog.xaml.cs b/AcManager/Pages/Dialogs/GameDialog.xaml.cs
index 8a59fe703..3792c9dae 100644
--- a/AcManager/Pages/Dialogs/GameDialog.xaml.cs
+++ b/AcManager/Pages/Dialogs/GameDialog.xaml.cs
@@ -139,22 +139,6 @@ public void Show(Game.StartProperties properties, GameMode mode) {
             _properties = properties;
             _mode = mode;
 
-            if (MessageDialog.Show(
-                    "Oculus Rift might not work properly with Content Manager is in AC root folder. It’s better to move it somewhere else to avoid potential issues.",
-                    "Important note", new MessageDialogButton {
-                        [MessageBoxResult.Yes] = "Move it now",
-                        [MessageBoxResult.No] = "Ignore"
-                    }, "oculusRiftWarningMessage") == MessageBoxResult.Yes) {
-                try {
-                    var newLocation = FilesStorage.Instance.GetFilename(MainExecutingFile.Name);
-                    File.Copy(MainExecutingFile.Location, newLocation, true);
-                    ProcessExtension.Start(newLocation, new[] { @"--restart", @"--move-app=" + MainExecutingFile.Location });
-                    Environment.Exit(0);
-                } catch (Exception e) {
-                    NonfatalError.Notify("Failed to move CM executable", "I’m afraid you’ll have to do it manually.", e);
-                }
-            }
-
             ShowDialogAsync().Forget();
             Model.WaitingStatus = AppStrings.Race_Initializing;
 
@@ -174,6 +158,24 @@ public void OnProgress(Game.ProgressState progress) {
                     Model.WaitingStatus = AppStrings.Race_Preparing;
                     break;
                 case Game.ProgressState.Launching:
+                    if (AcRootDirectory.CheckDirectory(MainExecutingFile.Directory)
+                            && new IniFile(AcPaths.GetCfgVideoFilename())["CAMERA"].GetNonEmpty("MODE") == "OCULUS"
+                            && MessageDialog.Show(
+                                    "Oculus Rift might not work properly with Content Manager is in AC root folder. It’s better to move it somewhere else to avoid potential issues.",
+                                    "Important note", new MessageDialogButton {
+                                        [MessageBoxResult.Yes] = "Move it now",
+                                        [MessageBoxResult.No] = "Ignore"
+                                    }, "oculusRiftWarningMessage") == MessageBoxResult.Yes) {
+                        try {
+                            var newLocation = FilesStorage.Instance.GetFilename(MainExecutingFile.Name);
+                            File.Copy(MainExecutingFile.Location, newLocation, true);
+                            ProcessExtension.Start(newLocation, new[] { @"--restart", @"--move-app=" + MainExecutingFile.Location });
+                            Environment.Exit(0);
+                        } catch (Exception e) {
+                            NonfatalError.Notify("Failed to move CM executable", "I’m afraid you’ll have to do it manually.", e);
+                        }
+                    }
+
                     if (SettingsHolder.Drive.SelectedStarterType == SettingsHolder.DriveSettings.DeveloperStarterType) {
                         Model.WaitingStatus = "Now, run AC…";
                     } else {
diff --git a/AcManager/Pages/Drive/QuickDrive.xaml.cs b/AcManager/Pages/Drive/QuickDrive.xaml.cs
index 66395e217..8108efed6 100644
--- a/AcManager/Pages/Drive/QuickDrive.xaml.cs
+++ b/AcManager/Pages/Drive/QuickDrive.xaml.cs
@@ -42,7 +42,6 @@
 using FirstFloor.ModernUI.Presentation;
 using FirstFloor.ModernUI.Windows;
 using FirstFloor.ModernUI.Windows.Controls;
-using FirstFloor.ModernUI.Windows.Media;
 using FirstFloor.ModernUI.Windows.Navigation;
 using JetBrains.Annotations;
 using Newtonsoft.Json;
diff --git a/AcManager/Pages/Settings/SettingsShadersPatch.xaml.cs b/AcManager/Pages/Settings/SettingsShadersPatch.xaml.cs
index 64f0920b7..8ce8f8f5b 100644
--- a/AcManager/Pages/Settings/SettingsShadersPatch.xaml.cs
+++ b/AcManager/Pages/Settings/SettingsShadersPatch.xaml.cs
@@ -87,9 +87,9 @@ private void OnPatchInstallationEnd(object sender, EventArgs e) {
 
         private void OnPatchUpdaterPropertyChanged(object sender, PropertyChangedEventArgs e) {
             if (e.PropertyName == nameof(PatchUpdater.NothingAtAll)) {
-                UpdateContentTranslate(true);
+                ActionExtension.InvokeInMainThreadAsync(() => UpdateContentTranslate(true));
             }
-            Model.OnPatchUpdaterChanged(sender, e);
+            ActionExtension.InvokeInMainThreadAsync(() => Model.OnPatchUpdaterChanged(sender, e));
         }
 
         private EasingFunctionBase _selectionEasingFunction;
@@ -159,6 +159,10 @@ public class ViewModel : NotifyPropertyChanged, IDisposable {
             private FileSystemWatcher _watcher;
 
             public ViewModel(bool isLive) {
+                if (PatchHelper.GetInstalledVersion() == null) {
+                    _selectedPageId.Value = null;
+                }
+
                 PagesView = new BetterListCollectionView(Pages);
                 PagesView.GroupDescriptions.Add(new PropertyGroupDescription(nameof(PatchPage.Group)));
 
@@ -223,9 +227,10 @@ private void OnWatcherRenamed(object sender, RenamedEventArgs e) {
 
             private string _foundIssuesMessage;
 
+            [CanBeNull]
             public string FoundIssuesMessage {
                 get => _foundIssuesMessage;
-                set => Apply(value, ref _foundIssuesMessage);
+                set => Apply(string.IsNullOrWhiteSpace(value) ? null : value.Trim(), ref _foundIssuesMessage);
             }
 
             private class FoundIssue {
@@ -291,8 +296,8 @@ private void RescanPossibleIssues() {
                     Directory.Exists(Path.Combine(root, "config")) ? null
                             : new FoundIssue("Base configs in “extension/config” are missing", @"reinstallCurrent", "reinstall patch",
                                     "Reinstall currently active patch version to fix the problem automatically"),
-                    Directory.Exists(Path.Combine(root, "shaders", "custom")) ? null
-                            : new FoundIssue("Custom shaders in “extension/shaders” are missing", @"reinstallCurrent", "reinstall patch",
+                    File.Exists(Path.Combine(root, "shaders.zip")) || Directory.Exists(Path.Combine(root, "shaders", "custom")) ? null
+                            : new FoundIssue("Custom shaders pack “extension/shaders.zip” are missing", @"reinstallCurrent", "reinstall patch",
                                     "Reinstall currently active patch version to fix the problem automatically"),
                     File.Exists(Path.Combine(root, "lua", "ac_common.lua")) ? null
                             : new FoundIssue("Lua utilities in “extension/lua” are missing", @"reinstallCurrent", "reinstall patch",
@@ -424,11 +429,9 @@ private void CreateConfigs() {
                     Mode = Mode.NoConfigs;
                 }
 
-                if (PatchHelper.OptionPatchSupport) {
-                    Pages.ReplaceEverythingBy_Direct(BasePages.Concat(Configs.Select(x => new PatchPage(x))));
-                } else {
-                    Pages.ReplaceEverythingBy_Direct(Configs.Select(x => new PatchPage(x)));
-                }
+                Pages.ReplaceEverythingBy_Direct(PatchHelper.OptionPatchSupport
+                        ? BasePages.Concat(Configs.Select(x => new PatchPage(x)))
+                        : Configs.Select(x => new PatchPage(x)));
 
                 SelectedPage = Pages?.GetByIdOrDefault(_selectedPageId.Value) ?? Pages?.FirstOrDefault();
                 if (Configs != null) {
diff --git a/AcManager/Pages/ShadersPatch/ShadersInstalledDetails.xaml b/AcManager/Pages/ShadersPatch/ShadersInstalledDetails.xaml
index ae2b81e3e..54b739209 100644
--- a/AcManager/Pages/ShadersPatch/ShadersInstalledDetails.xaml
+++ b/AcManager/Pages/ShadersPatch/ShadersInstalledDetails.xaml
@@ -66,7 +66,7 @@
 
       <DockPanel Visibility="{Binding NothingAtAll, Converter={StaticResource BooleanToVisibilityConverter}, ConverterParameter=inverse}">
         <DockPanel DataContext="{Binding Model.FoundIssuesMessage, Source={x:Static settings:SettingsShadersPatch.Instance}}" DockPanel.Dock="Top"
-            Visibility="{Binding Length, Converter={StaticResource MoreToVisibilityConverter}}">
+            Visibility="{Binding Converter={StaticResource NullToVisibilityConverter}, ConverterParameter=inverse}">
           <DockPanel HorizontalAlignment="Stretch" Dock="Top" Margin="0 0 0 4">
             <Path Data="{StaticResource AlertIconData}" Width="16" Height="16" Fill="{DynamicResource Error}" Stretch="Uniform" />
             <TextBlock Margin="10 2 2 2" Style="{StaticResource Heading2}" Foreground="{DynamicResource Error}"
diff --git a/AcTools.Render/Kn5Specific/Objects/Kn5RenderableCollider.cs b/AcTools.Render/Kn5Specific/Objects/Kn5RenderableCollider.cs
index a0a08d58d..1ad875006 100644
--- a/AcTools.Render/Kn5Specific/Objects/Kn5RenderableCollider.cs
+++ b/AcTools.Render/Kn5Specific/Objects/Kn5RenderableCollider.cs
@@ -11,6 +11,10 @@ namespace AcTools.Render.Kn5Specific.Objects {
     public class Kn5RenderableCollider : Kn5RenderableFile {
         public Kn5RenderableCollider(Kn5 kn5, Matrix matrix, bool asyncTexturesLoading = true, IKn5ToRenderableConverter converter = null)
                 : base(kn5, matrix, asyncTexturesLoading, converter) {
+            foreach (var mesh in Dummies) {
+                mesh.LocalMatrix = Matrix.Identity;
+            }
+
             foreach (var mesh in Meshes) {
                 mesh.SetTransparent(true);
             }
diff --git a/AcTools/Kn5File/Kn5Reader.cs b/AcTools/Kn5File/Kn5Reader.cs
index 1d07b7521..7958f6429 100644
--- a/AcTools/Kn5File/Kn5Reader.cs
+++ b/AcTools/Kn5File/Kn5Reader.cs
@@ -101,7 +101,7 @@ public Kn5Material ReadMaterial() {
         public void SkipMaterial() {
             SkipString(); // name
             SkipString(); // shader name
-            Skip(6); // blend (byte) + alphatested (byte) + depth mode
+            Skip(6); // blend (byte) + alpha tested (byte) + depth mode
 
             var properties = ReadInt32();
             for (var i = 0; i < properties; i++) {
@@ -142,7 +142,7 @@ public Kn5Node ReadNode() {
 
                     node.Vertices = new Kn5Node.Vertex[ReadUInt32()];
                     for (var i = 0; i < node.Vertices.Length; i++) {
-                        // 44 bytes per vertice
+                        // 44 bytes per vertex
                         node.Vertices[i] = new Kn5Node.Vertex {
                             Position = ReadSingle3D(),
                             Normal = ReadSingle3D(),
@@ -185,7 +185,7 @@ public Kn5Node ReadNode() {
                     node.Vertices = new Kn5Node.Vertex[ReadUInt32()];
                     node.VerticeWeights = new Kn5Node.VerticeWeight[node.Vertices.Length];
                     for (var i = 0; i < node.Vertices.Length; i++) {
-                        // 76 bytes per vertice
+                        // 76 bytes per vertex
                         node.Vertices[i] = new Kn5Node.Vertex {
                             Position = ReadSingle3D(),
                             Normal = ReadSingle3D(),
@@ -209,7 +209,7 @@ public Kn5Node ReadNode() {
                     node.MaterialId = ReadUInt32();
                     node.Layer = ReadUInt32();
 
-                    node.MisteryBytes = ReadBytes(8); // the only mistery left?
+                    node.MisteryBytes = ReadBytes(8); // the only mystery left?
                     node.IsRenderable = true;
                     break;
             }
@@ -283,7 +283,7 @@ public Kn5Node ReadNodeHierarchy() {
                     node.MaterialId = ReadUInt32();
                     node.Layer = ReadUInt32();
 
-                    node.MisteryBytes = ReadBytes(8); // the only mistery left?
+                    node.MisteryBytes = ReadBytes(8); // the only mystery left?
                     node.IsRenderable = true;
                     break;
             }
diff --git a/AcTools/Utils/Helpers/JsonExtension.cs b/AcTools/Utils/Helpers/JsonExtension.cs
index b47079d25..888343c0b 100644
--- a/AcTools/Utils/Helpers/JsonExtension.cs
+++ b/AcTools/Utils/Helpers/JsonExtension.cs
@@ -315,8 +315,8 @@ public static void SetNonDefault(this JObject obj, [LocalizationRequired(false)]
             }
         }
 
-        public static void SetNonDefault(this JObject obj, [LocalizationRequired(false)] string key, int? value) {
-            if (!value.HasValue || value == 0) {
+        public static void SetNonDefault(this JObject obj, [LocalizationRequired(false)] string key, int? value, int defaultValue = 0) {
+            if (!value.HasValue || value == defaultValue) {
                 obj.Remove(key);
             } else {
                 obj[key] = value.Value;
diff --git a/CustomTracksBakery/Program.cs b/CustomTracksBakery/Program.cs
index 00a7ff906..b4d2c6fe6 100644
--- a/CustomTracksBakery/Program.cs
+++ b/CustomTracksBakery/Program.cs
@@ -125,8 +125,8 @@ public class Options {
         [Option("sample-resolution", DefaultValue = 16, Required = false, HelpText = "Sample resolution.")]
         public int SampleResolution { get; set; }
 
-        [Option("ground", DefaultValue = true, HelpText = "Add shadows from the ground below.")]
-        public bool Ground { get; set; }
+        [Option("no-ground", DefaultValue = false, HelpText = "Add shadows from the ground below.")]
+        public bool NoGround { get; set; }
 
         [Option("hdr", DefaultValue = false, HelpText = "Make HDR samples.")]
         public bool HdrSamples { get; set; }
@@ -140,8 +140,8 @@ public class Options {
         [Option("bake-into-kn5", DefaultValue = false, HelpText = "Bake shadows into KN5 instead of creating a small patch.")]
         public bool ModifyKn5Directly { get; set; }
 
-        [Option("special-grass-ambient", DefaultValue = true, HelpText = "Copy grass ambient from the surface underneath.")]
-        public bool SpecialGrassAmbient { get; set; }
+        [Option("no-special-grass-ambient", DefaultValue = false, HelpText = "Copy grass ambient from the surface underneath.")]
+        public bool NoSpecialGrassAmbient { get; set; }
 
         [Option("debug-pos", DefaultValue = null, HelpText = "Bake shadows only around certain point, to test settings.")]
         public string DebugPos { get; set; }
@@ -356,7 +356,7 @@ public static int Main(string[] args) {
                     SampleResolution = options.SampleResolution,
                     ExtraPassBrightnessGain = options.ExtraPassBrightnessGain,
                     HdrSamples = options.HdrSamples,
-                    Ground = options.Ground,
+                    Ground = !options.NoGround,
                     SyncNormalsFilter = options.SyncNormals,
                     SyncNormalsPartiallyFilter = options.SyncNormalsPartially,
                     SyncNormalsPartiallyValue = options.SyncNormalsPartiallyValue,
@@ -365,7 +365,7 @@ public static int Main(string[] args) {
                     GrassFilter = options.GrassFilter,
                     RegularObjectsFilter = options.RegularObjectsFilter,
                     SkipOccludersFilter = options.SkipOccludersFilter,
-                    SpecialGrassAmbient = options.SpecialGrassAmbient,
+                    SpecialGrassAmbient = !options.NoSpecialGrassAmbient,
                     SurfacesFilter = options.Surfaces,
                     SurfacesAoOpacity = options.SurfacesAoOpacity,
                     SetMiltiplierForSkipped = options.SetMiltiplierForSkipped,
diff --git a/CustomTracksBakery/Properties/AssemblyInfo.cs b/CustomTracksBakery/Properties/AssemblyInfo.cs
index 06b5100a1..5b26c4c33 100644
--- a/CustomTracksBakery/Properties/AssemblyInfo.cs
+++ b/CustomTracksBakery/Properties/AssemblyInfo.cs
@@ -35,6 +35,6 @@
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
 
-[assembly: AssemblyVersion("1.0.0.711")]
-[assembly: AssemblyFileVersion("1.0.0.711")]
-// Modified at: 18/12/24 22:32:02
\ No newline at end of file
+[assembly: AssemblyVersion("1.0.0.712")]
+[assembly: AssemblyFileVersion("1.0.0.712")]
+// Modified at: 19/03/09 18:43:47
\ No newline at end of file
diff --git a/FirstFloor.ModernUI/Windows/Controls/BetterImage.cs b/FirstFloor.ModernUI/Windows/Controls/BetterImage.cs
index e847dcef1..f687f0e84 100644
--- a/FirstFloor.ModernUI/Windows/Controls/BetterImage.cs
+++ b/FirstFloor.ModernUI/Windows/Controls/BetterImage.cs
@@ -62,7 +62,8 @@ public partial class BetterImage : Control {
         /// If image’s size is smaller than this, it will be decoded in the UI thread.
         /// Doesn’t do anything if OptionDecodeImageSync is true.
         /// </summary>
-        public static int OptionDecodeImageSyncThreshold = 50 * 1000; // 50 KB
+        // public static int OptionDecodeImageSyncThreshold = 50 * 1000; // 50 KB
+        public static int OptionDecodeImageSyncThreshold = 50; // 50 KB
 
         /// <summary>
         /// Considering that 30 KB image takes ≈1.8 ms to be decoded and value of
@@ -80,7 +81,8 @@ public partial class BetterImage : Control {
         /// <summary>
         /// Before loading cached entity, check if according file exists and was not updated.
         /// </summary>
-        public static bool OptionEnsureCacheIsFresh = true;
+        // public static bool OptionEnsureCacheIsFresh = true;
+        public static bool OptionEnsureCacheIsFresh = false;
 
         /// <summary>
         /// Do not set it to zero if OptionReadFileSync is true and OptionDecodeImageSync is true!