Stacking fault not created

Hello,

I tried to write a code to create a stacking fault by displacement but after I visualize it doesn’t get created, could you help me with that? Thank you so much!

%%writefile NiCrFe.in

# LAMMPS script for creating a NiFeCr alloy (60:20:20) in an FCC structure with a stacking fault

units metal
dimension 3
boundary p p p
atom_style atomic

# Create FCC lattice and define the simulation box
lattice fcc 3.52
region box block 0 10 0 10 0 10
create_box 3 box

# Create atoms in the simulation box
create_atoms 1 box

# Define masses for the elements
mass 1 58.6934  # Ni
mass 2 55.845   # Fe
mass 3 51.9961  # Cr

# Assign atom types based on the desired composition
set type 1 type/fraction 2 0.20 12345
set type 1 type/fraction 3 0.25 12346

# Define the pair style and coefficients
pair_style eam/alloy
pair_coeff * * FeCrNi_d.eam.alloy Ni Fe Cr

# Define neighbor settings
neighbor 2.0 bin
neigh_modify delay 10 check yes

# Define the initial velocity
velocity all create 300.0 12345 mom yes rot yes dist gaussian

# Set up thermo settings
thermo 100
thermo_style custom step temp pe etotal press

# Dump atomic configuration for OVITO visualization
dump 1 all custom 100 NiFeCr_60_20_20.dump id type x y z

# Run initial minimization
minimize 1.0e-4 1.0e-6 100 1000

# Introduce a stacking fault by shifting part of the lattice
region fault block 0 10 0 10 5 10
group fault_region region fault
displace_atoms fault_region move 0.5 0.0 0.0

# Run minimization again after displacement
minimize 1.0e-4 1.0e-6 100 1000

# Set up MD run
timestep 0.002
fix 1 all nvt temp 300.0 300.0 0.1

# Run the simulation for 10000 timesteps
run 1000