Occasionally, first time users will setup Candle incorrectly. They will add families, but then go to the Student Groups setup to add the students to the student groups. They often forget to check the Primary Group checkbox. Candle will thus determine that the student is not in any primary groups and fail to count those students on the dashboard.
If you are unsure how to fix this issue, contact Olive Tree Support.
This will also cause assignment weight warnings.