Paint deposition not shown

Hello everybody,

I'm performing DELMIA Robot Surface Simulation Essentials training on top of R2018x HotFix4, but I'm facing a wrong behavior while simulating the paint deposition (I'm using the Car_Body_Paint_Mfg_Cell_L2_S3_Start cell attached to the training material): the paint deposition isn't shown on the surface, no matter I set the "Paint" or the "Threshold" parameter in the Paint Simulation Options, event though the simulation properly runs.

Any clue about what I'm doing wrong?

Thank you and best regards,

Alessandro