3D meshing fails ' failed_polys' file generated.

[18nanma]

2D Meshing goes through, but 3D meshing fails ' failed_polys' file generated.

gmsh installed correctly, neper tesselation generation is also fine.

neper -M n10-id1.tess

======================== N e p e r ======================= Info : A software package for polycrystal generation and meshing. Info : Version 4.9.0 Info : Built with: gsl|muparser|opengjk|openmp|nlopt|libscotch (full) Info : Running on 1 threads. Info : https://neper.info/ Info : Copyright (C) 2003-2022, and GNU GPL'd, by Romain Quey. Info : Ignoring initialization file. Info : --------------------------------------------------------------- Info : MODULE -M loaded with arguments: Info : [ini file] (none) Info : [com line] n100-id1.tess -mesh3dclreps 1 Info : --------------------------------------------------------------- Info : Reading input data... Info : - Reading arguments... Info : Loading input data... Info : - Loading tessellation... Info : [i] Parsing file n100-id1.tess'... Info : [i] Parsed file n100-id1.tess'. Info : Meshing... Info : - Preparing... (cl = 0.1077) 100% Info : - 0D meshing... 100% Info : - 1D meshing... 100% Info : - 2D meshing... 100% (0.045|0.64/96%| 3%| 1%) Info : - Fixing 2D-mesh pinches... Info : - 3D meshing... Info : [o] Writing file failed_polys'... Info : [o] Wrote file failed_polys'. Error : Meshing failed