1.2.0.92 No Mods
When you get incapacitated and revive, or after being killed and re-visiting your corpse the weapon you were holding disappears.
Also happens with AI NPCs, sometimes you search their body and there is no main weapon.
Perhaps the weapon is dropping through the ground on death?
Has happened many times in previous versions also.
Please include reproduction steps here!!!!
I've noticed the same problem. I don't know if it's just me, but I have the impression that this problem is more recurrent since the last updates. I don't know whether it's the server that automatically deletes objects on the ground or whether they pass through the ground (but it must certainly be one of these two causes).
(playing conflict full Everon on official servers)