CPUNEP error with older nep.txt

Here is a mwe that terminates without any output on master branch for me, but works fine on my laptop which has older calorine version.

from ase.io import read
from calorine.calculators import CPUNEP


calc = CPUNEP('nep.txt')
atoms = read('MAPI_a-a-c+_magnus-SCAN.xyz')
atoms.calc = calc
print(atoms.get_potential_energy())

nep.txt

MAPI_a-a-c+_magnus-SCAN.xyz

ping @elindgren, any thoughts?