For the quest given by
@Pleiadian, I was able to reproduce it to a certain degree - Scrubs spawning very close to a hill and then spitting items out flying in an arc outside of the walkable area. The item spawn itself has collision checks, but the animation has not.
@Maddy Montgomery - were these actual item spawns outside of the walkable area (as in: items that you were supposed to pick up and they already were up there) or were these items inside of containers of some sort (scrubs, eggs etc.) and they flew up there once you clicked "open" / "search"?