BUG Applying an Illustrator's artboard to a 3D object in Dimension 3.0.3

In the latest version of Dimesion (3.0.3) when I apply a graphic (.ai file with multiple artboards) as Decal, changing the artboard, change also the decal applyed ad the background.
In Stager, the same feature  works correctly, I think it's a bug of Dimension.

See the workflow in the 3 steps here attacched. 

One artboard is for the grafic background and another for the logo, but changing the artboard, they change together.
The only work around is to place a different Illustrator file! But I have all the artboards in the same file and in the previous version this operation worked well.
Thank you for your reply.

Michela