I am having troubles with the mmg hex2tet tool (tetra wrong orientation)

[SanPHr]

Hi, I am using the mmg tool hex2tet with meshes of 0.4 mm hexahedral elements. I am obtaining this kind of errors for different meshes:

Error:H2T_Add_tetra: tetra 905140 992847 297975 905142: wrong orientation

I supposed that this error is related to the performance of function MMG3D_Add_tetrahedron(MMG5_pMesh mesh, MMG5_int v0, MMG5_int v1, MMG5_int v2, MMG5_int v3, MMG5_int ref) in file mmg3d/API_functions_3d.c
Could you tell me what can be the problem and how to fix it?