Windows 10: MS Account Picture changes back despite deleted in "Account Pictures"

My Microsoft Account picture reverts to a picture that has been deleted. Despite my best efforts:
1. I have changed picture in Settings / Account
2. Then deleted the picture in Users/AppData/Roaming/Microsoft/Windows/Account/Pictures

Regardless, old picture will eventually return, causing me again to complete #1 and 2 above...to no avail.
I have also noticed that the wrong picture occasionally appears in the Microsoft Store. I have to sign out, restart PC, then sign in to get the correct picture...but doesn't always work.
Finally, I use Edge occasionally and the wrong picture is showing with my Microsoft Account in Edge but cannot be changed or corrected. I have tried to sign out and in, but the wrong picture continues to appear.
Appreciate any help.
I'm using Win10Pro v. 1909 b. 18363.836 on a Dell Latitude e6430 laptop.

:)

 

How to change account picture of DIFFERENT user in Windows 10?

Can I also set account picture for him?

Log in as him then do the following:

Source How to Change Your Account Picture in Windows 10

 

Account Log On Picture Keeps Changing!

Good references.

I found my admin and one user accounts were set to use the same MS account with different login photos. I changed the admin account to be a local account so I only have one MS account for login on the PC and the login photos are now more stable.

 

Unable to change account picture, error: Account picture error, Setting the account picture failed

Hi,

Thank you for posting your query in Microsoft Community, we appreciate your interest in Windows 10.

As you are unable to change the profile picture on Windows 10, please do let us know how exactly you are trying to change it.

I suggest you to try the below and check if it helps to change the profile picture.

Steps:

• 
  Log-in with administrator account.
  
• 
  Go to system root drive on which
  Windows is installed currently, that is usually C: drive.
  
• 
  Click on View
  in the title bar, then check the Hidden items. Now click the
  ProgramData folder.
  
• 
  Navigate to Microsoft\User Account Pictures.
  
• 
  In the User Accounts Pictures folder, you’ll see the default user account pictures. You’ll just need to replace these pictures with your desired picture for user account.
  
• 
  Manipulate your desired image for user account picture in the same format and same size and
  replace the default ones.
  
• 
  Now reboot the system and you’ll be able to get your desired image as user account picture.
  

Hope it helps. Reply to the post with an updated status of this issue and required information, we will be happy to assist you further.