Did National Board of Review Delay Their Vote?

Looks like a date change may have occured with the National Board of Review. Their Twitter account has pulled the “just one week until our Nov 30 awards announcement” tweet from earlier this week, and on their website the press release from earlier this year revealing the Nov. 30 date has gone missing. Could this have to do with Guillermo del Toro's “Nightmare Alley” still not being ready? As it stands, the first “Nightmare Alley” screening is set for December 1st in Los Angeles and New York City. Steven Spielberg's “West Side Story” surely adhered to NBR's original date, setting up a screening the day before the vote on November 29th.