Chem6 with gamma error

I’m trying to run chem6 example with gamma with 1.25 MeV energy using modified 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?