Desecrate will not spawn Reliquarian corpses

Bug report number 2556618590.

Either I'm extremely unlucky, or Desecrate is not spawning corpses for the new "Reliquarian" monster found in Act 5 (and probably 10?) The Reliquary. I've spent 5-10 minutes each in The Ridge in Act 6, The Prison in Act 6, and The Reliquary in Act 5 trying to get desecrate to give me Reliquarian corpses, but to no avail. Is this a bug, or do I need to spend more time desecrating? Even in my hideout, desecrate will only give me Desecrated Bonestalker corpses, even when I have 1 Reliquarian spectre following me around. (I spawned the spectre I have from a Reliquarian I killed).

Thanks