Saving Optimo objective results from Honeybee Fitness Function

Hi all, I want to run an optimization with Optimo. There are two variables and two objectives. One Fitness Function is for minimize windows surfaces, the other one is for maximize the average Daylight Factor. I used the Honeybee sample file to create the function using a range of Tvis as variable (with HB surfaces, not HBzones). During simulation, Radiance runs multiple times but at the end I find one result only and not five as Population Size. How can I fix it and obtain all five results instead of one?
All the HB simulations outside the Fitness Function run correctly.
Thank you!