Neutrino energy spectrum error

Hi,

I'm trying to compute the neutrino flux at earth for a model, but I keep getting the following error:

KeyError : 'n1n1_vlvl'

Redefining the multiparticle vl does not seem to work. The Standard Model neutrino's in this model are labelled as nu1, nu2, nu3, but this seems to be properly implemented when 'display multiparticles' is called. This error only seems to affect neutrino spectrum, i.e. when

generate indirect_detection e1 e1bar

is used no such error appears, while

generate indirect_detection nu1 nu1

gives the above error.

Thanks