Bug. Cant get Monk Essence Obstruction of Omniscience

I have playing only as monk. It’s almost a month now since the last August 22 update with new essences.

For some reason I still can’t get this Obstruction of omniscience Essence, I have gotten all the other new monk essences except this one :confused:

pls Blizzard fix this this seems like a bug, all other monks I see who aren’t even main monk players managed to get this essence already :confused:

I play Barb and still have only 3/6 of the latest Barb essences.
Bad luck is not a bug.