Well, while she was on Polaris, she knew Alpha Station was about to open fire, but when she told Commander McAdams to start the docking maneuvers, she left Polaris as Commander McAdams told Alpha Station that they're ready to start the docking maneuvers. However, Alpha Station was ignoring Commander McAdams and instead open fire on Polaris. Becca did not know Alpha Station ignored them, but she did see the destruction of Polaris.
I'm not sure, but I'm Really, Really, Really, Really, Really, truly sorry. Can you delete the message report to the admin? I really promise I won't do it again. That's strike two. And strike three, I will be in trouble. I promise.
May I ask where you saw him in this episode where he was uncredited? I looked at the ambassadors at Polis when the Azgeda ambassador was killed by Lexa looking for Uzac and couldn't find him. From Lexa's throne there are seven ambassadors to her right and four on the left (including the one from Azgeda). One seat on the left is empty and lead me to believe that was Uzac's seat.