Issue with number of events in the LHE file after event generation from gridpack

Dear experts,

I have created a gridpack for LO. I have followed this link [1]. Now I am generating events from the gridpack. In the produced lhe file, I have observed that the number of events I want to generate doesn't change in this part, whatever the event I use for a generation [2].
But it is changing here [3].

Basically.
./run.sh 1000 123 &
./run.sh 2000 323

Both give the same "nevents" but "iseed" is changing.
Although "Number of events" is changing in the <MGGenerationInfo> section.

I am using MG3.4.1
Is there anything I am missing?

[1]https://cp3.irmp.ucl.ac.be/projects/madgraph/wiki/GridDevelopment

[2]
#*********************************************************************
# Number of events and rnd seed *
# Warning: Do not generate more than 1M events in a single run *
#*********************************************************************
  1000 = nevents ! Number of unweighted events requested
 123 = iseed ! rnd seed (0=assigned automatically=default))

[3]<MGGenerationInfo>
# Number of Events : 1000
# Integrated weight (pb) : 495665095.6972631
</MGGenerationInfo>

Thanks,
Soumyadip