I was in the painted world playing unpatched Dark Souls, so it was offline, and I saw red phantom versions of those toxic torch wielders and of bonewheels. I had died to the bonewheel ones, and when I went back they were gone. I had tested it and they only appeared when I was human. And once I killed Priscilla they were gone for good.
It's only happened in the painted world so far, and I've only seen it this playthrough.
Does anyone have any idea what this is?