You'll want to verify the following for your classes/groups:
  1. Academics > Scheduling >  Requests and schedules > Departments & Courses - are your courses set to "Record Attendance: Yes"?
  2. Academics > Scheduling > Requests and schedules  > Set Section Info - are these tied to a Block? (Change Type from drop down)
  3. Academics > Scheduling > Schedule Outline > Schedule Sets - is that block tied to a Rotation on your schedule?
  4. Academics > Scheduling > Schedule Outline > Schedule Sets - is your Rotation tied to a Meeting Time on your Schedule Set?
You'll also want to check access dates:
  1. Core > Security > Group Page Access to make sure teachers have access as of the correct date. 
  2. Academics > Scheduling > Schedule Outline > Schedule Sets - make sure teachers have access as of the correct date. 
  3. Academics > Scheduling > Schedule Outline > Schedule Sets - verify the Start Date of the Schedule Set is to the correct date.