PixelToY function not giving sensible results

[Wile_E_Coyote]

ROOT.gPad.Modified() ; ROOT.gPad.Update() ;
print(f'Conversion miny_label_ndc to USER coordinates = {ROOT.gPad.PixeltoY(ROOT.gPad.VtoPixel(miny_label_ndc) - ROOT.gPad.GetWh())}')