Export fbx

Hi, in UnrealEditor I have some static mesh actors with metatags.
I’m trying to export them in fbx from File->Export all , but the metadatas (for example CreatedBy) vanish.
I’ve looked in the c++ code and ExportObjectMetadata into FbxMainExport.cpp should make the works.
Am I doing something wrong?
Thank you.

SOLVED: fbx metadata must have the prefix “FBX.” , for example “FBX.CreatedBy”, “Mark”.