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Hello Randy,

The mri_segment_hypothalamic_subunits command is a python script that uses tensorflow which in turn is coded to use AVX instructions.  If the VM host processor does not support AVX instructions, then you will get an illegal instruction error.

You can check to see if AVX instructions are supported if this commands shows "avx" or "avx2" in the output (see screenshot for where that is the case).

$ lscpu | grep avx

If AVX instructions are supported, then error can also happen if the command is incomplete.