I've been having issues with players dropped items for a long time now. Originally they would only disappear if there were no other players in the area when they died. This was bearable until items started instantaneously vanishing. I've spent hours scanning config files for Essentials, World guard, other places. Maybe I'm seriously just missing it, but it's getting really frustrating.
Actually, sorry I forgot to take this down. I guess having gamerule keepInventory set to true caused it. Makes me wonder why that doesn't work, but it's irrelevant to what I want for my server.