Checkpoint file corrupted, but calculation ends normally

GROMACS version:2020.3
GROMACS modification: No

My MD simulation ends normally, but when I run the commands

gmx dump -cp state.cpt


gmx dump -cp state_prev.cpt

they both return the message

WARNING: Checkpoint file is corrupted or truncated

What is possibly going wrong here?
state.cpt and state_prev.cpt are checkpoint files generated by the job.
I understand this is very little information, but I don’t know what more relevant information to include.

Thanks for your help

There are three issues I could guess on the top of my head:

  • most likely writing the checkpoint file to your filesystem did not work
  • less likely there is a version mismatch with the gromacs version that tries to read the the checkpoint file and the one writing it
  • least likely there is a checkpoint file reading bug in gmx dump