DeletArrayElementAtIndex crashes Unity when operating a bool array

Hi,

I've been working on a custom inspector. Using Add or Remove button to change the size of arrays. When I do this to a Transform array it works fine, but it always crash when used on a bool array. When I restart unity I can see from the inspector that the bool array is turned empty.

Here's the inspector part of my code:

 [CustomEditor(typeof(ClothChain))]
 [CanEditMultipleObjects]
 public class ClothChainEditor : Editor {
     SerializedProperty chainProp;
     SerializedProperty skipProp;
     
     void OnEnable () {
         chainProp = serializedObject.FindProperty("chain");
         skipProp = serializedObject.FindProperty("isSkipped");
     }
     
     public override void OnInspectorGUI () {
         int i;
         int removeId = -1;
         for (i=0; i<chainProp.arraySize; i++) {
             EditorGUILayout.BeginHorizontal();
             if ( GUILayout.Button("-", GUILayout.Width(24)) ) {
                 removeId = i;
             }
             if (i<chainProp.arraySize) {
                 EditorGUILayout.LabelField("Skip", GUILayout.Width(36));
                 if ( i<skipProp.arraySize ) {
                     skipProp.GetArrayElementAtIndex(i).boolValue = EditorGUILayout.Toggle (skipProp.GetArrayElementAtIndex(i).boolValue, GUILayout.Width(32));
                 }
                 chainProp.GetArrayElementAtIndex(i).objectReferenceValue = EditorGUILayout.ObjectField(chainProp.GetArrayElementAtIndex(i).objectReferenceValue, typeof(Transform), true);
             }
             EditorGUILayout.EndHorizontal();
         }
         if ( GUILayout.Button("+", GUILayout.Width(24)) ) {
             chainProp.arraySize += 1;
             skipProp.arraySize += 1;
         }
         if (removeId != -1) {
             chainProp.DeleteArrayElementAtIndex(removeId); //this line works as expected
             skipProp.DeleteArrayElementAtIndex(removeId); //this line will crash unity
         }
             serializedObject.ApplyModifiedProperties();
     }
 }

I'm using Unity 4.3.2. is it a bug or am I missing something here.