Linear Form, Slab Form and Free Form disappers in VUE render

Hello, I choose the file:

C:\ProgramData\Bentley\OpenBuildings CONNECT Edition\Configuration\WorkSpaces\Building_Examples\worksets\Multi-Use_Retail_Building_NM\Designs\A_Grocery-Mezz.dgn

(I am using NO_AVX solution for VUE)

In the model I include a Triform solid, Mesh, linear form, Slab form and free form. They have no part assigned.

I render with Vue and linear form, slab for and free form do not appear. 

The rest including Triforma solid and Mesh appear.

View image

If I assign them part (family: Walls_Ext and part: Block Wall) then they appear when rendering.

This is very strange.


Why do they disappear?

Regards.

Antonio

Openbuilding update 9 10.09.01.38