Biomass reactor evnetually stop working because nutrients turn to spoilage mid-swing in inserter leading to it. Normally it's handled by spoilage going into inventory of the machine, but for some reason it doens't work with biomass reactor.
Ok so. The Burner Generator prototype does not have a trash slot. So I'm straight up making spoilage burnable in the generator. It is biomass after all.
Currently working on that, next patch everything will be fine hopefully