Social Account Avatar is Missing in Social Studio
|Knowledge Article Number||000220406|
|Description||When viewing your social account avatar in Social Studio, the name or avatar of a social account is missing or incorrect.|
|Resolution||In Social Studio, a social account saves metadata - such as username, name, and avatar URL - when first added to the tool, and whenever re-authorized. If a profile's details become outdated due to changes made on its social platform, they can be updated with the Reauthorize function. This should re-populate the avatar after reauthorizing the social account.
See here, for the steps to reauthorize your Social Account.