Fix asset 'Reload' option to be available when asset failed to load for manual load

Source/Editor/Content/Items/AssetItem.cs

@@ -98,12 +98,12 @@ namespace FlaxEditor.Content
         }
 
         /// <summary>
-        /// Reloads the asset (if it's loaded).
+        /// Reloads the asset (if it's loaded or failed to load).
         /// </summary>
         public void Reload()
         {
             var asset = FlaxEngine.Content.GetAsset(ID);
-            if (asset != null && asset.IsLoaded)
+            if (asset != null && (asset.IsLoaded || asset.LastLoadFailed))
             {
                 asset.Reload();
             }

Source/Editor/Windows/ContentWindow.ContextMenu.cs

@@ -132,7 +132,8 @@ namespace FlaxEditor.Windows
 
                     if (item is AssetItem assetItem)
                     {
-                        if (assetItem.IsLoaded)
+                        var asset = FlaxEngine.Content.GetAsset(assetItem.ID);
+                        if (asset != null && (asset.IsLoaded || asset.LastLoadFailed))
                             cm.AddButton("Reload", assetItem.Reload);
                         cm.AddButton("Copy asset ID", () => Clipboard.Text = JsonSerializer.GetStringID(assetItem.ID));
                         cm.AddButton("Select actors using this asset", () => Editor.SceneEditing.SelectActorsUsingAsset(assetItem.ID));