What is tumblr avatar not updating?

Some possible reasons why a Tumblr avatar may not be updating are:

1. Cache issues: If the user's browser or Tumblr app is using a cached version of the avatar, it may not show the latest changes. In this case, the user can try clearing their browser cache or logging out and back in to their Tumblr account to refresh the avatar.

2. Size and format restrictions: Tumblr has specific requirements for the dimensions, file type, and size of avatars. If the user's avatar does not meet these standards, it may not upload or display correctly. The recommended size for avatars is 128 x 128 pixels, and the acceptable file formats are JPG, PNG, and GIF.

3. Server errors: Sometimes Tumblr servers can experience glitches or downtime, which can affect the uploading and updating of avatars. If the user is experiencing issues with their avatar despite following the guidelines, it may be a temporary problem with Tumblr's servers.

4. Account settings: The user's account settings may prevent their avatar from updating, such as if they have chosen to use a default avatar or disabled the option to change their avatar. The user can check their account settings to see if there are any restrictions or preferences that may affect their avatar.

If the problem persists, the user may consider contacting Tumblr support for further assistance.