diff --git a/sync-server/package-lock.json b/sync-server/package-lock.json
index 4fcfd18..8220dba 100644
--- a/sync-server/package-lock.json
+++ b/sync-server/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "simple-room",
-  "version": "3.1.1",
+  "version": "3.1.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "simple-room",
-      "version": "3.1.1",
+      "version": "3.1.2",
       "license": "MIT",
       "dependencies": {
         "@google-cloud/agones-sdk": "^1.35.0",
diff --git a/sync-server/package.json b/sync-server/package.json
index 537012d..16c3648 100644
--- a/sync-server/package.json
+++ b/sync-server/package.json
@@ -1,6 +1,6 @@
 {
   "name": "simple-room",
-  "version": "3.1.1",
+  "version": "3.1.2",
   "description": "",
   "main": "./lib/index.js",
   "types": "./lib/index.d.ts",
diff --git a/sync-server/src/world.ts b/sync-server/src/world.ts
index bef9a21..8db23b7 100644
--- a/sync-server/src/world.ts
+++ b/sync-server/src/world.ts
@@ -147,7 +147,7 @@ export class WorldClass {
         for (let [_, room] of this.rooms) {
             const obj = room.$currentState()
             if (Object.keys(obj).length == 0) {
-                return
+                continue
             }
             Transmitter.addPacket(room, obj)
             for (let id in room.users) {
diff --git a/sync-server/tests/room.spec.ts b/sync-server/tests/room.spec.ts
index 566ef9a..f26b60e 100644
--- a/sync-server/tests/room.spec.ts
+++ b/sync-server/tests/room.spec.ts
@@ -2,10 +2,14 @@ import { World } from '../src/world'
 import { Transmitter } from '../src/transmitter'
 import MockSocketIo from '../src/testing/mock-socket'
 import { testSend } from './fixture'
-import { beforeEach, test, expect, afterEach } from 'vitest'
+import { beforeEach, test, expect, afterEach, vi } from 'vitest'
+
+let auth = vi.fn()
 
 beforeEach(() => {
-    World.transport(MockSocketIo.serverIo)
+    World.transport(MockSocketIo.serverIo, {
+        auth
+    })
     Transmitter.encode = false
 })
 
@@ -206,6 +210,49 @@ test('change current state', () => {
     })
 })
 
+test('World send: All Rooms', async () => {
+    class Room {
+        $schema = {
+            test: String
+        }
+        test = 'aa'
+    }
+
+    const firstPlayerId = 'first'
+    const secondPlayerId = 'second'
+
+    auth.mockReturnValue(firstPlayerId)
+    const socket1 = new MockSocketIo.ClientIo(firstPlayerId)
+    await socket1.connection()
+
+    auth.mockReturnValue(secondPlayerId)
+    const socket2 = new MockSocketIo.ClientIo(secondPlayerId)
+    await socket2.connection()
+
+    const room1 = World.addRoom('room1', new Room())
+    const room2 = World.addRoom('room2', new Room())
+
+    const watch = vi.fn()
+    socket2.on('w', watch)
+
+    //await World.joinRoom('room1', firstPlayerId)
+    await World.joinRoom('room2', secondPlayerId)
+
+    await World.send()
+
+    room2.test = 'bb'
+
+    await World.send()
+
+    expect(watch).toHaveBeenCalledTimes(3)
+    expect(watch).toHaveBeenLastCalledWith([
+        'room2', 
+        expect.any(Number), 
+        { test: 'bb' },
+    ], undefined)
+
+})
+
 afterEach(() => {
     World.clear()
 })