
I’m sorry to hear that you’re having trouble updating user profile images in Delve. If the user profile images are not updating in Delve, you can try the following solutions:
Clear Browser Cache: Clear the browser cache and try again.
Check Delve Settings: Ensure that the Delve settings are correct. You can check this by navigating to the Delve settings and verifying that the settings are correct.
Check Office 365 Environment: Ensure that the user profile images are updated in the Office 365 environment. You can check this by navigating to the Office 365 environment and verifying that the images are updated.
Check Graph API: Ensure that the Graph API is being used correctly. You can check this by verifying that the Graph API is being used to retrieve the correct user profile images.
If none of these solutions work, you can try contacting Microsoft support for further assistance. Sometimes I see old profile photos across the tech stack even weeks after changing it. I think it can be expected until Delve is retired in 2024 - https://office365itpros.com/2023/12/18/delve-retirement-2024/
I hope this helps!