Inclusive Decays with genr8 produce error

[imoewi01]

omegaeta_bkg_mc.input.txt

When trying to produce an omega eta sample with the attached genr8 config file, I get a fatal error message, shown below. Things work fine if I specify omega and eta decays explicitly.

BeamProperties: Using fixed polarization = 0
Reading: targetp.x targetp.y targetp.z targetMass
Found: 0.000000 0.000000 0.000000 0.938272
Reading: t-channelSlope
Found: 5.000000
Reading: number of particles need to describe the decay
Found: 4
Reading: part# chld1# chld2# prnt# Id nchld mass width chrg flag
Found: 0 -1 -1 -1 14 0 0.938272 0.000000 1 11
Found: 1 2 3 -1 0 2 2.000000 5.000000 0 0
Found: 2 2 3 1 33 0 0.782660 0.008680 0 11
Found: 3 2 3 1 17 0 0.547862 0.000000 0 11
Found EOI---- Input File appears Fine.
Error!: Isobar->mass <0 for Isobar with no children
Exit
Warning in UnknownClass::SetDisplay: DISPLAY not set, setting it to 129.57.52.52:0.0
Wrote 0 events to genr8_ETA1_TEST_050685_000.hddm

Something went wrong with genr8
status code: 255
ending gluex_MC.py