Duplicate Objects in Level in Shipping Build

Our tutorial map has a room that contains several duplicate objects when stacked on top of each other, however this issue only occurs when playing in a shipping build. It does not appear in editor: in the editor, the map only contains a single instance of each object in the room. It also does not occur when playing a development or testing build. However, when loading the level in a shipping build, one room (and only one room) inside the map contains duplicate objects in the same position (treasure chests, that kind of thing).

All we are doing is server traveling to the map when the player hits a button on the main menu, so I am not sure how this duplicate objects issue can be occurring. Has anyone encountered anything similar to this in the past?