I convert some element to morph(using api). Converting is working well. But few element's body is not one, I have to perform solid operation. When I perform solid operation(ACAPI_Element_SolidOperation_Create), I got -2130313015(APIERR_NO3D) err code...

There is object and equipment element. If I try to divide them using type ID(like API_WallID), both of them get API_ObjectID. Is there any way to divide them? I using Archicad 22 and 24