fix bug

Prefabs/net_pickable.gd

@@ -24,6 +24,17 @@ func _ready() -> void:
 	_apply_authority_state()
 
 
+## Enable the item only where it is free or where we are its current holder, so
+## a peer's snap zone / hand never grabs an item another peer is holding. Called
+## by NetworkManager whenever net_held_by changes. Note: net_held_by is set per
+## peer by RPC (not by a synchronizer), so the holder keeps its item enabled
+## while everyone else disables their copy.
+func apply_held_state() -> void:
+	if not _item:
+		return
+	_item.enabled = net_held_by == 0 or net_held_by == multiplayer.get_unique_id()
+
+
 func _physics_process(_delta: float) -> void:
 	if not NetworkManager.is_online():
 		return