In some files such as profile.php, admin.php, etc, there're not loading linktree. You can see difference between profile link and member list link in linktree.
Example, add the following code to line 121 profile.php you can see difference in linktree.
// Load up the linktree!
$context['linktree'][] = array(
'url' => $scripturl . '?action=profile',
'name' => $txt[79]
);
That is not important but i think it will be full and help a lot for new bies like me.
Hope it's useful!
Regards
Tran Vu