Sharding in RP realms, Bugged?

Thanks, Im hoping to get a fully vetted definitive response from Blizzard CS.
We’re on the same page, you are describing exactly what I am experiencing. But im having trouble finding any official documentation on the subject. It would be nice if the subject was clearly explained (officially).
this blizzard CS agent wrote it “shouldn’t” be happening at this time, but later seems to admit not knowing much on the subject, doesn’t seem to have put much effort into the ticket…