During Ultimate Alien, the Ultimatrix scanner function activated automatically in the presence of uncatalogued DNA appropriate for the Codon Stream, i.e. sapient species it had not encountered. But it would not scan organisms like Ultimate Kevin or Darkstar, presumably because of being a fusion of species it had catalogued and a mutant form of a catalogued species, respectively. But what about the so-called Mutant Reptile Leader from The Eggman Cometh? It was sapient (even pondering getting a name) and unrelated to any other samples in the Codon Stream. Why didn't the Ultimatrix scan him?