Niantic has fixed the Meltan Special Research text issues in Pokémon GO

To celebrate the launch of Pokémon Let’s Go Pikachu and Let’s Go Eevee, Niantic is hosting a number of events in Pokémon GO. New Special Research for the Mythical Pokémon Meltan is available now. Field Research featuring Pokémon originally discovered in the Kanto region and not commonly found in Pokémon Let’s Go will be available from now until November 27. Make sure to look around you during that time, as Pokémon such as Omanyte and Kabuto may appear in the wild more frequently. New Pikachu Cap and Eevee Cap avatar items are now available in the Style Shop. From November 23 at 1:00 p.m. PST to November 26 at 1:00 p.m. PST, certain Evolutions of Eevee—Vaporeon, Jolteon, Flareon, Espeon, and Umbreon—as well as Raichu and its Alolan form will appear more frequently in Raid Battles.

Source: @PokemonGoApp