If you'd like a workaround (if you don't want to wait for a release), do the following steps:
1. Fetch the network settings in Autotune again
2. Re-map the field in the Customdb mapping area
3. In /components/libraries/profile/linkedin.php, at line 102 after the catch block, add the following code:
if (in_array('picture-url', $fields))
{
$avatarUrl = $this->getAvatarUrl($this->provider->getProviderUserId());
$profile->set('pictureUrl', $avatarUrl);
}
This should then retrieve the avatar URL to the mapped field. If you do the above and still have problems let us know.
-Melissa