I completed the updated 2020-2021 registration form. However, when I went back out into said child's account, I mistakenly hit the online application process.
Now it shows my child's application as 'in progress'. But he's already enrolled and his 2020-2021 update form is completed.
I recommend reaching out to the Enrollment section of your school district who should be able to assist you in enrolling your child to the school district and in removing the phantom application from the system if necessary.