I think that's what happened with the report the other day with the hatchet that didn't actually exist? I was able to see the item nearby with shift held, but standing next to it, it didn't exist in Items Nearby after crashing trying to salvage it.
The current playthrough with the charge is playing otherwise normally EXCEPT I just ran into the amazon dungeon and all the amazons + named enemy had little duplicate copies standing there that didnt have FOV indicators, didn't move and couldn't be walked into, occasionally blinking in and out of existence. Didn't cause any crashes even trying to damage them with various AoE and single target abilities.
If something was wrong with this weapon in the charge playthrough, I'm pretty sure it's long since been salvaged