UCSB does not send out acceptances until March, so if you did not receive an invite, this just means you are not being considered for the Honors or Regents.
From the UCSB website::
What is the purpose of the UCSB Chancellor’s Receptions?
The receptions provide you and your family with the opportunity to meet UCSB faculty, staff and alumni who will introduce you to opportunities on campus. Our goal is to inform you about the excellent opportunities for academic, personal and professional growth at UCSB so that you can make an informed college choice.
Does this mean I have been admitted? Who was invited to the reception?
Your invitation does not indicate that you have been admitted. However, invitations were only sent to our highest achieving applicants in select regions.