Not that it has any direct impact on me, personally, but I think the LT nights thing is still in a state of general disarray, no? As of 9/5, my 2018 SPG & Marriott stays were backed out of the total. My only post-9/5 stay has yet to post (and likely at this point won't until I can submit a missing stay request), but I suspect the LT nights total will increment by that number of nights when the stay finally does post (just based on the postings/experiences of others). So for those trying to track their 2018 goals, this will be inconvenient at the very least (their LT totals will reflect everything but 1/1/18 - 9/5/18).
Otherwise, my account has been mostly good since combining shortly after 8/18: Points seem correct; Still not sure I understand the LT years calculation, but I'm happy with it (and expect no further adjustments at this point, Jan '19 LTPP would likely persist even if there were); I am now correctly showing as PPE vs PE in all account views; I still don't show having ambassador status, but he's continued to be responsive, so no matter; Post-8/18 I was able to rebook an existing Marriott award stay and lop 20k points off of the cost; I was able to apply and have approved legacy SPG SNAs to said award reservation; I was recently finally able to select my earned Choice Benefits.
Overall nowhere near as bad as what some others have endured, thankfully.