create_bonds error with granular

Hi,

Does any body have experience about using Create_bonds in granular simulations?

It seems there is an issue with this command in granular since every time using, the program suddenly crashes.

Here is the simple script to duplicate this error:

simple create_bonds example of error with granular

dimension 3
units si
atom_style hybrid sphere molecular
atom_modify map array
boundary f f f
newton off
comm_modify mode single
comm_modify vel yes

region reg block 0 0.1 0 0.1 0 0.1 units box
create_box 1 reg bond/types 1 extra/bond/per/atom 12 extra/special/per/atom 12

mass * 0.001
lattice fcc 0.01
region fcc block 0.04 0.06 0.04 0.06 0.01 0.03 units box
create_atoms 1 region fcc
set type 1 diameter 0.01

pair_style gran/hertz/history 1.10e6 NULL 50.0 NULL 0.5 1
pair_coeff * *

bond_style harmonic
bond_coeff 1 1.0e6 0.01

neighbor 0.1 bin
neigh_modify delay 0

create_bonds all all 1 0.01 0.01001

run 0