Since the new version, no weapon has ever dropped from the about 20 barbarians or 10 bandits I have killed in multiplayer (Medieval realm server). In singleplayer, I have no issue, weapons drop on each bandit/barbarian. The ordinary loot, which is accessed through the inventory is there, but the weapons have another drop mechanism, they fall directly on the ground and are not accessible though the inventory. Maybe weapons fall under the ground in MP.
I want to know if someone have a similar experience from another multiplayer server to understand if it's just bad luck, a game or a server issue.
Edit : Same issue with skeletons. I have also see only the variant "0" during night in MP, never the others.