I got extra boxes and was not getting a red x to get rid of them. What should I have done?
The x to get rid of extra boxes appears only in the drawing step. When you want to cancel them later, you have to go back to the drawing step. Are you sure you were in the drawing step when you was missing the x?
Did it happen just once, or does it happen all the time? Could you make a screenshot when it happens again?
Let me know, please. Thanks! And sorry for any troubles.