There is a bug in the Investigative Duty Officer Assignments unlock of the Research Lab fleet holding.
Our fleet has unlocked Tier 1 Development, yet we can't access these assignments. In the Research Lab holding screen, 'Investigative R&D Assignments Tier 1 is listed under the Unlocks: heading. However, when I try to click on it in the holding itself, I see the message: 'Duty Officer Assignments unlocked by a Research Lab special project'.
Either the labeling in the Fleet Holdings overview needs to be changed, or the Duty Officer Assignments interaction needs to be corrected.