I have the same problem. but i have everything u said. This is one of my pokemons and info bout it;
Lucario: Adamant; Life Orb; Justified
Met: Battle Masion; Met Level: 1; Egg met Conditions: Day Care Helpers
All IVs
EVs: Atk: 252, Spe: 252, HP:4
Attacks: Extreme Speed, Drain Punch, Rock Slide, Swords Dance