UPDATE 28/1/20: Niantic has now confirmed to Eurogamer that Darumaka will be available in the wild and in 10km eggs after the current Lunar New Year event finishes.
ORIGINAL STORY 27/1/20: Pokémon Go’s Lunar New Year event launched last Friday, but so far has left some players feeling rather unlucky.
One of the event’s key features – a boosted chance of trades resulting in Lucky Pokémon – was apparently not activated over its first 24 hours.
Source: Eurogamer Pokémon Go's latest event is off to a bumpy start