Band structure plot distance doesn't agree with BZ plot

Hello,
I’m plotting a band structure for a hexagonal 2D material cell along the band path
<0,0,0> <1/3,1/3,0> <0.5,0,0> <2/3,-1/3,0> <0,0,0>
Calling BSPlotter.plot_Brillouin() gives the expected result
image
but the band structure plot shows a different distance between K-M and M-K’
image
Does anyone have a good way to fix this band structure plot?