uScript scripts give error after updating to Unity 5.4.0 Beta 21 and 22

Hi.

After updating to Unity 5.4.0b21 and b22 all uScript (From the Asset Store) generated scripts that are attached to any game object and after clicking on that game object in the "Hierarchy" or that game object prefab in the project, Unity gives the error below.
And in the "Inspector" of that game object every component disappear. (Beta 20 and earlier are working fine.)

I already have made a bug report (Case 807874)



Thanks.
__________Error______________________________
InvalidOperationException: The operation is not possible when moved past all properties (Next returned false)
UnityEditor.PropertyHandlerCache.GetPropertyHash (UnityEditor.SerializedProperty property) (at C:/buildslave/unity/build/Editor/Mono/Inspector/PropertyDrawerCache.cs:31)
UnityEditor.PropertyHandlerCache.GetHandler (UnityEditor.SerializedProperty property) (at C:/buildslave/unity/build/Editor/Mono/Inspector/PropertyDrawerCache.cs:12)
UnityEditor.ScriptAttributeUtility.GetHandler (UnityEditor.SerializedProperty property) (at C:/buildslave/unity/build/Editor/Mono/ScriptAttributeGUI/ScriptAttributeUtility.cs:226)
UnityEditor.EditorGUI.GetPropertyHeightInternal (UnityEditor.SerializedProperty property, UnityEngine.GUIContent label, Boolean includeChildren) (at C:/buildslave/unity/build/Editor/Mono/EditorGUI.cs:5028)
UnityEditor.EditorGUI.GetPropertyHeight (UnityEditor.SerializedProperty property, UnityEngine.GUIContent label, Boolean includeChildren) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorGUIBindings.gen.cs:1002)
UnityEditor.Editor.GetOptimizedGUIBlockImplementation (Boolean isDirty, Boolean isVisible, UnityEditor.OptimizedGUIBlock& block, System.Single& height) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorBindings.gen.cs:207)
UnityEditor.GenericInspector.GetOptimizedGUIBlock (Boolean isDirty, Boolean isVisible, UnityEditor.OptimizedGUIBlock& block, System.Single& height) (at C:/buildslave/unity/build/Editor/Mono/Inspector/GenericInspector.cs:14)
UnityEditor.InspectorWindow.DrawEditor (UnityEditor.Editor editor, Int32 editorIndex, Boolean rebuildOptimizedGUIBlock, System.Boolean& showImportedObjectBarNext, UnityEngine.Rect& importedObjectBarRect) (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:1197)
UnityEditor.InspectorWindow.DrawEditors (UnityEditor.Editor[] editors) (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:1030)
UnityEditor.InspectorWindow.OnGUI () (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:352)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)