Could you raise a bug report with specific steps to reproduce (if you think it's related to names being set); and specific Twitter accounts which are problematic. So; for example is it one of: Contact has no first and last name, Twitter user does, nickname matches Twitter ID but photo & Twitter URL are not updated. In so, does the Twitter account show up in the manual matching dialogue? Contact has first & last names, Twitter user does not; no automatic matching possible but Twitter account doesn't show up in the manual matching dialogue. Thanks in advance.