Why is the transfer feature not working properly on the KR?

Why are the Korean servers the only ones where transfers from the 20th Anniversary servers to the ERA servers are not functioning properly?
Korean servers started eight days later than the US and EU servers, and Korean players are being forced to transfer from a PvP server to a PvE server—something that does not happen anywhere else.
Why is this happening, and why does Blizzard refuse to give any clear or accountable explanation?

Blizzard Korea pushes the responsibility onto Blizzard US, while Blizzard US simply ignores the issue altogether.
I demand a clear and unequivocal answer as to why Korean servers are being singled out and treated differently from every other region.

In a forum that has nothing to do with wow? and where it will never be seen by anyone who could answer? So edgy but yet totally missed the title of this forum? Lol