For reasons unexplained, I cannot make a seat allocation for my flight MEL-AKL NZ124 on 18 Nov. Call centre said they would put in a request, but I also note that ExpertFlyer is also unable to pull-down the current seatmap. Aircraft is B744. I successfully have seat 29C allocated for AKL-MEL on NZ 123 (same day return

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I wonder if this is a transition problem with the Seat/Seat+B/ etc fate structure TT?