I tried to delete all:

• all the Vue elements: environment, plants, terrain...
• all the 3dsMax object, one by one...

As the result I isolated the problem:

If I tried to delete one wheel of a 3dsMax car model: the rendering works correctly.

Thus the problem is the wheel that interact with the rendering or FinalGather.

But I think this is not a material problem (of the wheel) that compromise the rendering:

• I tried to "SaveSelected" - the camera and the wheel - as .max file; I clicked Reset 3dsMax, and tried to Open the last file: the problem persists!
• I tried to Reset 3dsMax, Merge just the wheel with materials and the same camera: the problem disappears and rendering works correctly.

Thus I think that the problem can be some parameters or settings, in the 3dsMax Rendering Setup Panel, inherited from Vue, that interfere with 3dsMax rendering and in particular with the wheel.

But I don't know what precisely cause this rendering error!
Help!
Horsepower0171.