[Wannier] Bands with "Ripple"

[Eduardo Perassi]

Hi, I am using wannier90 to reproduce some bands of a big unit cell of graphene with 24 carbons atoms. I am using pz orbitals and I did not include sp2 orbitals so I am trying to reproduce only 24 bands. I attached to this email a picture of the bands. The image shows the bands which are affected by a "ripple" so, is it possible to remove the ripple by increasing the number of k point or any other parameter?  I will appreciate any help!, thanks.
Eduardo.
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