Why ObjectOffsetPos , ObjectOffsetRot and ObjectOffsetScale were ignore in ObjectSpace?

I tried to cache my complex scene with default XmeshSaver Maxscript UI in Object space mode with baking transformations of each objects .

BUT !! It seems that the ObjectOffsetPos , ObjectOffsetRot and ObjectOffsetScale were all ignored during the caching process.

I was even not able to find one keyword ‘ObjectOffset’ in all the Scripts of XmeshSaver.

The Object-Offset Transform is very,very important , all the animation in object space were mess up in the end.

NOW, I can only cache them in world space. BUT I NEED TO CACHE THEM IN OBJECT SPACE. PLEASE HELP!