diff --git a/volatility/framework/objects/utility.py b/volatility/framework/objects/utility.py
index 187cf515a..fc70c1ce4 100644
--- a/volatility/framework/objects/utility.py
+++ b/volatility/framework/objects/utility.py
@@ -29,15 +29,15 @@ def pointer_to_string(pointer: objects.Pointer,
     return char.cast("string", max_length = count, errors = errors)
 
 
-def array_of_pointers(array: objects.Array,
+def array_of_pointers(array: interfaces.objects.ObjectInterface,
                       count: int,
-                      subtype: templates.ObjectTemplate = None,
+                      subtype: typing.Optional[typing.Union[str, templates.ObjectTemplate]] = None,
                       context: interfaces.context.ContextInterface = None) -> interfaces.objects.ObjectInterface:
     """Takes an object, and recasts it as an array of pointers to subtype"""
     if isinstance(subtype, str) and context is not None:
         subtype = context.symbol_space.get_type(subtype)
     if not isinstance(subtype, templates.ObjectTemplate) or subtype is None:
-        raise TypeError("Subtype must be a valid object template")
+        raise TypeError("Subtype must be a valid object template (or string name of an object template)")
     subtype_pointer = objects.templates.ObjectTemplate(objects.Pointer, type_name = 'pointer', subtype = subtype)
     return array.cast("array", count = count, subtype = subtype_pointer)
 
diff --git a/volatility/framework/symbols/windows/extensions/__init__.py b/volatility/framework/symbols/windows/extensions/__init__.py
index 4e3965db8..459982fce 100644
--- a/volatility/framework/symbols/windows/extensions/__init__.py
+++ b/volatility/framework/symbols/windows/extensions/__init__.py
@@ -182,7 +182,7 @@ class _MMVAD_SHORT(objects.Struct):
         if hasattr(self, "u1") and hasattr(self.u1, "VadFlags1"):
             return self.u1.VadFlags1.CommitCharge
 
-        if hasattr(self, "u") and hasattr(self.u, "VadFlags"):
+        elif hasattr(self, "u") and hasattr(self.u, "VadFlags"):
             return self.u.VadFlags.CommitCharge
 
         elif hasattr(self, "Core"):
@@ -193,14 +193,18 @@ class _MMVAD_SHORT(objects.Struct):
     def get_private_memory(self):
         """Get the VAD's private memory setting"""
 
-        if hasattr(self, "u1") and hasattr(self.u1, "VadFlags1"):
+        if hasattr(self, "u1") and hasattr(self.u1, "VadFlags1") and hasattr(self.u1.VadFlags1, "PrivateMemory"):
             return self.u1.VadFlags1.PrivateMemory
 
-        if hasattr(self, "u") and hasattr(self.u, "VadFlags"):
+        elif hasattr(self, "u") and hasattr(self.u, "VadFlags") and hasattr(self.u.VadFlags, "PrivateMemory"):
             return self.u.VadFlags.PrivateMemory
 
         elif hasattr(self, "Core"):
-            return self.Core.u1.VadFlags1.PrivateMemory
+            if hasattr(self.Core, "u1") and hasattr(self.Core.u1, "VadFlags1") and hasattr(self.Core.u1.VadFlags1, "PrivateMemory"):
+                return self.Core.u1.VadFlags1.PrivateMemory
+
+            elif hasattr(self.Core, "u") and hasattr(self.Core.u, "VadFlags") and hasattr(self.Core.u.VadFlags, "PrivateMemory"):
+                return self.Core.u.VadFlags.PrivateMemory
 
         raise AttributeError("Unable to find the private memory member")