Mythic Plus Chest

Tried opening the mythic plus chest beside proudmoore emissary, got a 385il gear, from mythic 10.

I did m+ back in legion for the last week, did not open the class hall chest. 

Guildmates who opened on prelaunch week of BFA are unable to open the m+ chest in boralus.

Not sure if intended but definitely worth opening now before fix!