I just qualified for Mosaic by spending $50K in January. My Barclays "reward tracking" page correctly shows $50K in spending for Calendar Year 1/1/19 -12/31/19. My Mosaic status on JetBlue posted soon after my January closing date of 1/25.

However both on the JetBlue site and on the Barclays site, my Mosaic expiration date is listed as 12/31/19, not the expected 12/31/20. Also JetBlue 'backdated' my 15K point bonus to 12/30/18 - before any spending was done. Has this happened to anyone else? I have asked Barclays to correct via a message but have not heard back.