This aligns with a handful of other data points, including my own situation, that the year counter for LTTEs has not been incremented since achieving that LT level (maybe 2 or 3 others further up this thread and another 1 or 2 in a different thread that I don't recall the title of). I'm sure the IT wizards at Bonvoy will go back in and happily increment us for the missing years if LT Amb is created (NOT).