Points earned for purchases on the card should show up in your AGR account on Amtrak.com a day or 2 after the FNBO statement is available on their website. Points earned directly from Amtrak (like for completed travel) have nothing to do with FNBO statement dates.
Just logged into my AGR account, and it isn't showing any transactions since 12/22/22. The Amtrak tickets were purchased with the FNBO card on 1/6/23. The transaction appears in my FNBO account on their website, but no points showing yet from that transaction in my AGR account on that website - which is why I assume the points (including the bonus points) will post at the end of the current billing period.Mine shows credit card points earned 12/08/22 but not 1/8/23 which were indeed posted. Log in to your AGR account and take a look. The e-statement is not necessarily up-to-date.