ChildActor Component disappear in compiled game

Hello, help me please, I need what my character have many parts of objects inheritance from one class.

I make base class of the abstract part and add empty staticMesh component to it.
Then I make many parts as blueprint inheritanced from base class, and add mesh to staticMesh Component for each.
And in my character I place all blueprint parts as ChildActor Component.

All looked fine, and in play in editor look as I need. But if I compile game with Launch button (Win7) all parts disappear.
I check all in empty scene and with simple actors and all be the same.

Thank you for watch this.
Pavel.

I find this solution:
in each blueprint part I add in EventBeginPlay SetStaticMesh node and manually set mesh. After this after begin game all mesh in actor component updated and all ok.
I think, on compiling game, staticMesh component of all inheritanced blueprints reset to default value (as been setted in base class).