If new students have their Admissions Status still set to Admissions, they will not display in certain reports until this is changed to Enrolled.
If a student relatively new to the school is not appearing in a report (e.g. SEN, Meals, Clubs), go to Admin > Students > Admissions in order to check if they are displaying here. A student will remain in this area after their entry date if their Admissions Status has not been set to Enrolled (despite that column indicating they are a Current Student).
In order to change this, click on Bulk Update Admissions
Select Admissions - Status under Student Attribute, and then click Choose to display the student name(s). Select 9 - Enrolled from the dropdown, tick against the student name(s) (or Check All if this applies to all students), then Update to save.
Alternatively you can change the Admission Status to Enrolled on their extended tab, under Core Information.
The student(s) will appear in the report the next time you run it.