Synchronized corpses at TWM

[Hiemalis]

For the first time I arrived at the summit of Timberwolf Mountain and I've found a few corpses. From these, two of them are experiencing some sort of quantum entanglement!

Whenever I store items into one of them, I can see and retrieve these same items from the other. The items are not duped; these are exactly the same items I've stored in the first corpse, and each item removed from one is removed from the other as well.

You can see both corpses on the attached screenshot -- the second one is approximately at the center of the image.

(My guess: they were generated with the same internal ID.)

OS: PC/Windows 10 Pro.