Crash due to too many particles at (0, 0, 0)

I am running a planetary simulation with a single rank (./configure --with-hdf5=$HDF5_ROOT/bin/h5pcc --with-gsl=$GSL_ROOT --disable-parallel-hdf5 --with-numa=$NUMACTL_ROOT --disable-mpi --with-hydro=planetary --with-equation-of-state=planetary and swiftsim/examples/swift -s -G -t 16 pE_Th_b70v10_1e7_master.yml on the last master) with the IC and parameter file provided here: https://obswww.unige.ch/~lhausamm/swift/issues/planets/

You will need to download the tables for the EoS (script in swiftsim/examples/Planetary/EoSTables/).

After about ~2-3 days of simulation (t=1.96e4 and 40880 steps), the code crashes due to a lot of particles at the coordinate (0, 0, 0). The particles produce a tree that is too deep. In the last snapshot, I do not see any particle at this position.