OK, let me know what happens with the beta (it has a correction for a case in which a probability for a vocabulary word or Rejecto phoneme can be calculated wrongly, which I think may be a co-traveler with this bug even though I no longer think it’s the only cause for it). It’s helpful to know that you aren’t using Rejecto weighting, because that takes some suspicion away from Rejecto and focuses it more onto the main OpenEars/Pocketsphinx implementation, which at least narrows the field.