Paolo.. I'm having an issue here.  Could be a Reality issue, could be lux.  Not sure.  Started a render, it was looking beautiful after 1700 passes, then I had to close and then reopen lux and resume the render.  Tons of red-lines with errors hashing the files from my hard drive.  The files it had issues with were about a dozen or so; but, the main ones affecting the look of the render are the  hair scalp trans and the eyelash trans.  Now my poor girl has helmet-head and the worst fake eyelashes ever.  Not sure what to do.