[Rivet] crossSection()

[Aliaksei Hrynevich]

Dear Rivet developers,

I've got a problem using method crossSection(). It works Ok in my code 
with MC generators Pythia8 and Herwig. But it doesn't work with Pythia6 
428.2 and Pythia6 427.2. Analysis just stops at the place where I'm 
calling this method without any errors. Is it a known bug or the problem 
is in my code? (seems to be not, because it works fine with other MC 
generators). Is there a way to make it work?

I'm using Rivet in Athena on lxplus.cern.ch
INFO using release [AtlasOffline-19.0.0] [x86_64-slc6-gcc47-opt] 
[19.X.0/rel_5]
INFO Using Rivet version 1.9.0

-- 
Thanks,
Aliaksei Hrynevich