When I'm trying to add a Raid through the Raid Attendance link, I'm not getting any members to check off for attendance. Not sure how or why this changed, but if you can tell me what I need to do to fix it I'd be greatly appreciative.
Head to Admin > DKP > Loot Systems, then edit the loot system in question, and make sure you have the correct roster selected (or no rosters selected at all). When this happens, it's usually when a loot system is associated with a roster that is later deleted.