diff --git a/src/integratedServer/main.ts b/src/integratedServer/main.ts
index 0d65ae2a2..1c1735333 100644
--- a/src/integratedServer/main.ts
+++ b/src/integratedServer/main.ts
@@ -56,10 +56,13 @@ export const updateLocalServerSettings = (settings: Partial<CustomAppSettings>)
 export const startLocalServerMain = async (serverOptions: { version: any }) => {
   worker = new Worker('./integratedServer.js')
   serverChannel = useWorkerProxy<typeof workerProxyType>(worker, true)
-  const readyPromise = new Promise<void>(resolve => {
+  const readyPromise = new Promise<void>((resolve, reject) => {
     addEventListener('ready', () => {
       resolve()
     })
+    worker!.addEventListener('error', (err) => {
+      reject(err.error ?? 'Unknown error with the worker, check that integratedServer.js could be loaded from the server')
+    })
   })
 
   serverChannel.start({
@@ -77,6 +80,9 @@ export const startLocalServerMain = async (serverOptions: { version: any }) => {
     addEventListener('packet', (data) => {
       restorePatchedDataDeep(data)
       processData(data)
+      if (data.name === 'map_chunk') {
+        addStatPerSec('map_chunk')
+      }
     })
   }, options.excludeCommunicationDebugEvents)
   setupEvents()
diff --git a/src/integratedServer/worker.ts b/src/integratedServer/worker.ts
index a24b079d7..fb2cdd2a1 100644
--- a/src/integratedServer/worker.ts
+++ b/src/integratedServer/worker.ts
@@ -13,7 +13,7 @@ export interface CustomAppSettings {
 export interface BackEvents {
   ready: {}
   quit: {}
-  packet: {}
+  packet: any
   otherPlayerPacket: {
     player: string
     packet: any