early leaves can do that when there is no problem... in addition to potentially caused by something.
fluctuating pH causes wavy growth in leaves due to varying growth rates over time. i'm sure a slightly dry climate or somem other climate variables may also be possible?
They look healthy, so i'd hold off on reacting to it. If the 5 and 7-fingered leaves are near-perfecct, you are fine and likely just some fugly early leaves.