Hammer Throw Disappears when collided with Structures

NOTE: I’m playing in true offlinee mode and I know some bugs are exclusive to online/offline
Playing Sentinel Hammerthrow with it spiralling and orbiting. Initially I thought it was disappearing only when in contact with gates but I’ve learned it also disappears when collided with the following structures: Walls in the burning forest echo; gates; sealed mage spawning “beacon”; different terrain levels (stairs and ramps); Lakeside Arena boat structure; and other random arena/monolith structures honestly there are a lot of them.