Chem6 with gamma error

I’m trying to run chem6 example with gamma with 1.25 MeV energy using modified beam_HCP.in. Some threads seems OK, some other threads show “No molecule recorded, energy deposited= 13.61 eV”, and some threads are failing with the following fatal exception:

-------- EEEE ------- G4Exception-START -------- EEEE -------
*** G4Exception : TIME_DONT_MATCH
issued by : G4MoleculeCounter::RemoveAMoleculeAtTime
Time of species e_aq^-1 is 1 ps while global time is 1 us

*** Fatal Exception *** core dump ***

which fails the whole program and I don’t see the output. How can it be fixed?