[ALPS-users] Honeycomb lattice not working with boson Hubbard model

Dear Developers, I'm trying to look into the extended boson Hubbard model on a honeycomb lattice, but no matter what I do the density always comes out as zero. I don't seem to have the same problem when using a honeycomb lattice with any of the other examples in the tutorials. What could be the problem? All the best, Kristina