diff --git a/CHANGELOG.md b/CHANGELOG.md
index 579eff94..e2b8da0d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,7 +29,7 @@ _This release is scheduled to be released on 2025-01-01._
 
 ### Fixed
 
-- [updatenotification] Fix pm2 using detection when pm2 script is inside or outside MagicMirror root folder (#3576) (#3605)
+- [updatenotification] Fix pm2 using detection when pm2 script is inside or outside MagicMirror root folder (#3576) (#3605) (#3626)
 - [core] Fix loading node_helper of modules: avoid black screen, display errors and continue loading with next module (#3578)
 - [weather] Changed default value for weatherEndpoint of provider openweathermap to "/onecall" (#3574)
 - [tests] Fix electron tests with mock dates, the mock on server side was missing (#3597)
diff --git a/modules/default/updatenotification/update_helper.js b/modules/default/updatenotification/update_helper.js
index cc6f2b0a..89e8ddf7 100644
--- a/modules/default/updatenotification/update_helper.js
+++ b/modules/default/updatenotification/update_helper.js
@@ -1,7 +1,7 @@
 const Exec = require("node:child_process").exec;
 const Spawn = require("node:child_process").spawn;
 const fs = require("node:fs");
-
+const pm2 = require("pm2");
 const Log = require("logger");
 
 /*
@@ -142,7 +142,6 @@ class Updater {
 	// restart MagicMiror with "pm2"
 	pm2Restart () {
 		Log.info("updatenotification: PM2 will restarting MagicMirror...");
-		const pm2 = require("pm2");
 		pm2.restart(this.PM2, (err, proc) => {
 			if (err) {
 				Log.error("updatenotification:[PM2] restart Error", err);
@@ -171,7 +170,15 @@ class Updater {
 				return;
 			}
 
-			const pm2 = require("pm2");
+			if (process.env.unique_id === undefined) {
+				Log.info("updatenotification: [PM2] You are not using pm2");
+				this.usePM2 = false;
+				resolve(false);
+				return;
+			}
+
+			Log.debug(`updatenotification: [PM2] Search for pm2 id: ${process.env.pm_id} -- name: ${process.env.name} -- unique_id: ${process.env.unique_id}`);
+
 			pm2.connect((err) => {
 				if (err) {
 					Log.error("updatenotification: [PM2]", err);
@@ -187,13 +194,14 @@ class Updater {
 						return;
 					}
 					list.forEach((pm) => {
-						Log.debug(`[PM2] pm2 name: ${pm.name} -- in process env: ${process.env.name}`)
-						Log.debug(`[PM2] pm2 pm_id: ${pm.pm_id} -- in process env: ${process.env.pm_id}`)
-						if (pm.pm2_env.status === "online" && process.env.name === pm.name && +process.env.pm_id === +pm.pm_id) {
-							this.PM2 = pm.name;
+						Log.debug(`updatenotification: [PM2] found pm2 process id: ${pm.pm_id} -- name: ${pm.name} -- unique_id: ${pm.pm2_env.unique_id}`);
+						if (pm.pm2_env.status === "online" && process.env.name === pm.name && +process.env.pm_id === +pm.pm_id && process.env.unique_id === pm.pm2_env.unique_id) {
+							this.PM2 = pm.pm_id;
 							this.usePM2 = true;
-							Log.info("updatenotification: [PM2] You are using pm2 with", this.PM2);
+							Log.info(`updatenotification: [PM2] You are using pm2 with id: ${this.PM2} (${pm.name})`);
 							resolve(true);
+						} else {
+							Log.debug(`updatenotification: [PM2] pm2 process id: ${pm.pm_id} don't match...`);
 						}
 					});
 					pm2.disconnect();