fix

scene/entity/general/sfx.gd

@@ -108,6 +108,7 @@ func _set(property: StringName, value: Variant) -> bool:
 	if mode != "场景背景音":
 		return false
 	if property == "自动开始":
+		if value != null:
 			autoplay = value 
 		scene_autostart = value
 		return true