This is something which has "Just Worked" for me in the past as I have developed Python Products. But now I am stumped. I have two Products. Product #1 is a: (Persistent, ObjectManager, PropertyManager, Implicit, Item) and contains other objects of type: (ObjectManager, Implicit, Item) Product #2 is a: (Persistent, RoleManager, ObjectManager, PropertyManager, Implicit, Item) which contains objects: (RoleManager, PropertyManager, Implicit, Item) The two __init__.py files are nearly identical Attributes (strings, etc.) on contained objects in Product #1 are persistent across Product refreshes, while attributes of contained objects in Product #2 are all flushed on Product reload. The only differences I can see at this point are the base classes, and the fact that Product #1 does not directly store it's sub-objects, but contains a folder which contains the objects. Should that make a difference here? What's going wrong? Thanks in advance, John Ziniti