Windows 10: How can I remove an old device from a child's MS family account?

My son got a new computer and we added it to his MS account. Then I removed the old device from his account - but my MS Family account still shows the old device. I'm sure this problem has come up before but wondering if anyone has finally found a solution. I've tried removing him from the Family account, confirming the one device on this MS account and then re-adding him but it still shows the old device. Any help is much appreciated.

:)

 

Unable to remove child account from Family

Thanks Elise. Your suggestion worked. I contacted live chat option via "Get Help" app.

Just for others who read this in future I had performed the following steps to solve the issue.

1. Log into Microsoft Family Safety
   
2. Select 3 dots on the top right of child's card & select "Remove consent for this child's account"
   
3. It then warns, "You are about to remove parental consent for this child. They will no longer have permissions to access certain Microsoft sites and services."
   
4. Click on "Remove consent" button
   
5. Go back to Microsoft Family Safety home page. Wait for few seconds for settings to reflect. The child account will disappear from family home page.
   

 

Unable to remove child account from Family

I am also having the same issue I am not able to remove the childs account I followed the steps and after doing so I received this message in error (
Select Manage my child’s profile info, find your child, then select
Remove consent for this child’s account. Then, try removing this member again).
I'm completely lost I cant find where im given the option to do so (remove consent)