Currently, if a Bone Circle Staff becomes equipped to a Wandering Zombie (or another unit with Brainless) and that unit then dies, the Bone Circle Staff will not jump to any further units, and will cease to exist. This probably has something to do with a part of the Brainless ability: it says the re-spawned unit is unequipable.
good find, we will have to look into this further. I looked into this and stiched equipped with the staff seem to properly create stitched remains.
Which stitched did this happen on? Also it would be helpful if someone else other players could comment on this happening.
Okay, so it is if it is transferred multiple times. With that additional information we were able to reproduce the results along with the issue regarding Swarm. Thanks for the added details.