Edit: Sorry I missed the kill count issue listed first time I read. I've noticed the grimoire bonus tracker for ogre and hydras has not moved in 2 weeks and I have killed quite a few. I'm stagnant at 121/125 ogres though I've killed 10 in last week. And hydra is 76/125 though I did nightfall and weekly across 3 characters and there are 5 hydras in archon priest strike so my count should be ticking up by 30 more.