Enormous results when using multithreading mode

I installed GEANT4 in this mode. But when I compare results obtained in that mode with none multithreading mode there are big difference between them. For example I calculate bremsstrahlung spectrum falling into some target. For multithreading mode the number of gammas in some energetic range is about sixteen time smaller than for one thread mode. Besides this at the end of run the list of number of generated particles should be displayed before bremsstrahlung spectrum. But in multithreading mode it displayed somewhere in between of spectrum. For example like this

What is the problem of multithreading mode ?