The cliffside/colossus fractal has been acting up since patch.
If a person falls off any of the outside ramps while carrying the hammer, the hammer has a good chance of not respawning at the waypoint table, and instead it either lands in the bushes at the very bottom, or disappears.
If a person DC’s while carrying the hammer, the hammer goes away totally. It is not at the bottom, or any of the waypoints (we had a whole group searching for it, and could not find it, even if the person that was carrying and DC’d logs back and/or dies)