Bug(?): Spectral Callers, Curates, and/or Protectors dropped several backpacks in the courtyard area, which I don't recall, and loot tables I found don't include. Saw three drop in 30 minutes on 3/27.
Steps to Reproduce Bug: Kill these various mobs.
Not a big deal, but just seemed odd. Here are the loot tables for reference (yes, very recent renditions but the old ones aren't much help at all).
Spectral Caller
Spectral Curate
Spectral Protector
Spectral Knight