GROMACS version:
Gromacs/2023-gpuvolta and gromacs/2023
GROMACS modification: No
Both gromacs/2023 and Gromacs/2023-gpuvolta gave non-zero intermolecular Coul-14 and LJ-14.
As they are strictly intramolecular interactions, they should be zero intermolecularly.
Kind regards,
Junfang Zhang of CSIRO Energy