Do you have oneworld Emerald status? If not, you won't be able to get 1AC or 2AC as these rows contain blocked seats. In fact, the only window pair available for non Emeralds is 2HK. JAL is really obnoxious about blocking huge numbers of seats for only the highest tier members. So for me, for example, despite being a 20-year JGC member, LSP 4 stars, and current JMB Sapphire, there are large blocs of seats that I cannot access. It is super irritating.