Hi @Borges, Alisson,
Thank you for posting in this community.
According to your description, I tested it in my environment, and everything works fine. But don't worry, please refer to the following steps to troubleshoot the issue:
1. This official Microsoft document documents some issues and solutions regarding SharePoint Online sites not displaying user images, see if it helps you: Profile picture not showing in SharePoint Online.
2. SharePoint Online user avatars come from two sources:
- If the user has an Exchange Online mailbox, and the mailbox contains a profile picture for the user, SharePoint Online will request the picture from Exchange Online. If you are looking to synchronize Exchange Online user images, go to the user's Delve page, which will trigger the image synchronization behavior.
- Users browse to their Delve profile page and upload their pictures. If the images were uploaded from the user's Delve page, try re-uploading the user images.
3. Check if the same issue occurs with other SharePoint sites.
4. You could try to clear browser cache then restart it.
5. Try to use a different browser or your browser's InPrivate mode to see if the same error occurs.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.