Parent table has a numeric formula field (percent) (A) with an IF statement formula. Child table contains a lookup of this field (B). Child table has another field (C) that uses (B) in the formula. For some reason, when you first create a record or edit a record in the child table, field (C) is populated. However, it disappears when accessing that record again. If you click edit and save again, it populates again. Any ideas why this is happening?