This happened to a group of us last night after completing Infected Space Elite. We still had about 5 minutes on the timer and completed it. Afterwards, no optional loot. We all searched high and low and nada.
When completing Special Task Force fleet action mission Infected Space (Elite) our group managed to complete the optional objective; however, no extra loot ever dropped. No window or prompt came up to roll for any items, so we hope to figure out if this is a common error
Members of group:
Fleet Commandant Dinovo@FleetCommandant