If you have accidentally changed date ranges for a student's meal patterns it's possible that they may still appear in your meal registers after you have off rolled them.
Step 1 - Remove meal patterns
To solve this you should first update the meal patterns from the students profile. Navigate to the Student Profile and click on Meals on the left-hand menu. Click into any of the ticks next to the meal pattern.
On the slide over, scroll to the bottom and click on the red Remove Meal Pattern button.
Step 2 - Remove meal choices
Next, remove any meals that the student has been incorrectly shown as taken. You can see how to do this here: Delete student meal attendance or meal choice