I don't know how the Nevada SOS data base works, but this isn't the first time that a historical officer has disappeared from the data base (not even by a long shot).
There would still be a record of their involvement in the old filings for the entity.
I think if you order the "initial list" filing from 11/23/15 you will find their names (Stephen Hicks and Henry Sargent) there if they did set-up the Bellissima Spirits LLC entity like your old ICNB research says
Some links that pull their info from the Nevada SOS site (like the following) still show Stephen Hicks and Henry Sargent as historical officers for Bellissima Spirits LLC: