Vantus Rune: Battle of Dazar'alor Rank 3

So posting for two reasons, to confirm no one else has it and if not to make it known tho I’m sure it might be by blizzard. I’ve asked for few friends, which no one has or has seen and tried to look up info on where to get this. I got rank 1 and rank 2 week one of raid release from the same heroic run. I have killed many heroic bosses and even mythic bosses from BoD sense release and have yet to find rank 3. Is the drop bugged?

I would like clarification on this; it does not seem to be dropping at all

March 9. 5 people in guild with inscription running BfDA. They got rank 2 within the first 2 weeks. None of them have received rank 3, consistently running normals, heroics. Two have even tried lfr.

Best I could find it has a drop rate of like 0.05 from one boss all others bosses it shows .000 something. wowdb is where i got info

I’m also impacted by this. No Rank 3 after 69 boss kills.

Well seems it drops a little from mythic raid boss . That is only drops posted on MMO and only 2 . So I think Blizz should look into this .