Buffer overflow error with parmmg

Dear community,

I am trying a simple test for the parallel version of mesh adaptation using parmmg, but I encountered an unexpected buffer overflow error.

Here is the code (taken from the example provided):

// Run with MPI: ff-mpirun -np 4 script.edp
// NBPROC 4

load "medit"
load "PETSc"
load "parmmg"
macro dimension()3// EOM
include "macro_ddm.idp"

mesh3 Th = cube(getARGV("-global", 30), getARGV("-global", 30), getARGV("-global", 30));
DmeshCreate(Th);
fespace Vh(Th, P1);
{
    mesh3 ThParMmg;
    int[int] n2o;
    int[int][int] communicators;
    ParMmgCreateCommunicators(Th, ThParMmg, n2o, communicators);
    fespace VhParMmg(ThParMmg, P1);
    VhParMmg met = sqrt((x-0.5)^2 + (y-0.5)^2 + (z-0.5)^2) - 0.3;
    real hmin = 2.0e-2;
    real hmax = 1.0e-0;
    met = max(hmin, min(hmax, abs(met)));
    mesh3 ThNew = parmmg3d(ThParMmg, metric = met[], hausd = 0.05, nodeCommunicators = communicators);
    DmeshReconstruct(ThNew);
    DmeshCopy(ThNew, Th);
    savevtk("ThNew_"+mpisize+".vtu", ThNew, bin = 0);
}

Vh u = sqrt((x-0.5)^2 + (y-0.5)^2 + (z-0.5)^2) - 0.3;
medit("Th", Th, u);

When I run this script on my machine with FreeFem++ version 4.15 (fresh installation), I get a buffer overflow error during the parmmg stage:

  &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
   MODULE PARMMGLIB_DISTRIBUTED: IMB-LJLL : 1.5.0 (Nov. 01, 2024)
  &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
     git branch: HEAD
     git commit: cd8a6e340e466e857b0bb9952f115d8999337167
     git date:   2024-11-01 09:12:00 +0100

  -- PMMG: CHECK INPUT DATA
  -- CHECK INPUT DATA COMPLETED.     0.000s

  -- PHASE 1 : ANALYSIS
  ** SURFACE ANALYSIS
  ** SETTING TOPOLOGY

  -- PARALLEL MESH QUALITY  29791   162000
     BEST   0.657267  AVRG.   0.657267  WRST.   0.657267 (ELT 16880)
  -- PHASE 1 COMPLETED.     0.102s

  -- PHASE 2 : ISOTROPIC MESHING
*** buffer overflow detected ***: terminated

Does anyone know why this might be happening, and if there is a workaround or fix?

Thank you very much in advance!

How many processes are you using? Everything runs fine on my end. Note that the problem is not too big, so you could just stick to Mmg.