I have a study with a manually set cohort. About half the subjects in the study are assigned to "LAIV", the other half to "TIV". In the study navigator for the clinical data, everything looks right. However, if I run the specimen report by specimen type for all cohorts, most of the visits appear as they should, but some of them (Day 8 and later) appear under "No cohort assigned" for both the LAIV and TIV subjects. This is an unchanging cohort, and the Visit columns in the specimen records are correct (Day 8, Day 9, etc), so I don't understand why this would happen. In fact, if I go to the specimen table filtered by an LAIV subject and choose Participant Groups -> Cohort -> LAIV, the Day 8, Day 9, etc records still appear in the grid.

Could there be some other setting in the specimen information that's causing the cohort to not match up? I tried clearing out the cohorts and manually reassigning them all to see if that helped, but it made no difference. I've attached a file with some screenshots.

Thanks for any help,
Jen