premise: Buddleja 'Pink Pagoda' (sold as in the USA) is a sterile hybrid cultivar raised in 1998 by Peter Moore, Chief Propagator at the Longstock Park Nursery in Hampshire, England, and named by Roy Lancaster. The cultivar is the result of a crossing of "Buddleja" 'Pink Delight' with "Buddleja × weyeriana" 'Golden Glow'. Plant Breeders' Rights were awarded in 2008.
hypothesis: Buddleja 'Pink Pagoda' (sold as in the USA) is a sterile hybrid cultivar raised at some point between 1937 and 2019. 
reason: The year it was raised was 1998, which falls easily between the years I stated. The AI does not understand this, and simply sees the wrong year. 