trying to create twin

[qwertyuiop860]

neper -T -n "10::msfile(n_msfile2)::msfile(n_msfile3)" -morpho "gg::voronoi::msfile(morpho_msfile3)" -o d

========================    N   e   p   e   r    =======================
Info   : A software package for polycrystal generation and meshing.
Info   : Version 4.10.1
Info   : Built with: gsl|muparser|opengjk|openmp|nlopt|libscotch (full)
Info   : Running on 4 threads.
Info   : <https://neper.info>
Info   : Copyright (C) 2003-2024, and GNU GPL'd, by Romain Quey.
Info   : No initialization file found (`/home/mritunajy-singh/.neperrc').
Info   : ---------------------------------------------------------------
Info   : MODULE  -T loaded with arguments:
Info   : [ini file] (none)
Info   : [com line] -n 10::msfile(n_msfile2)::msfile(n_msfile3) -morpho
         gg::voronoi::msfile(morpho_msfile3) -o d
Info   : ---------------------------------------------------------------
Info   : Reading input data...
Info   : Creating domain...
Info   : Creating tessellations...
Info   :   [level] Running in multiscale mode (3 scales)...
Info   :   [    1]  1/1 Info   :   - Setting seeds... 100%              
Info   :   - Running tessellation...
Info   :     > Initial solution: f   =10.585826080
Info   :     > Iteration   5078: fmin=0.112293482 f=0.112293483  
Info   :     > Final solution  : f   =0.112293482 (5078 iterations)
Info   :     > Reached `eps' criterion.
Info   : Generating crystal orientations...
Info   :   [    2]  1/10 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    2]  2/10 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    2]  3/10 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    2]  4/10 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    2]  5/10 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    2]  6/10 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    2]  7/10 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    2]  8/10 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    2]  9/10 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    2]  10/10 Info   :   - Setting seeds...                 
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    3]  1/14 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    3]  2/14 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    3]  3/14 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    3]  4/14 Info   :   - Setting seeds...                  
Info   :   - Running tessellation...
Info   : Generating crystal orientations...
Info   :   [    3]  5/14 Info   :   - Running tessellation...           
Error  : You have discovered a bug in Neper!  Please file an issue at
         https://github.com/rquey/neper/issues.  Thank you.