You may have an item under another one. Count how many items you see and look at the count at the bottom. If your visual count doesn't match then move one item at a time to an empty space until you locate the one hiding under another.
You may have an item under another one. Count how many items you see and look at the count at the bottom. If your visual count doesn't match then move one item at a time to an empty space until you locate the one hiding under another.