diff --git a/patches/youtube-music-ts-api+1.7.0.patch b/patches/youtube-music-ts-api+1.7.0.patch
index a38eb537..68aa5b10 100644
--- a/patches/youtube-music-ts-api+1.7.0.patch
+++ b/patches/youtube-music-ts-api+1.7.0.patch
@@ -1,8 +1,52 @@
 diff --git a/node_modules/youtube-music-ts-api/build/exports.d.ts b/node_modules/youtube-music-ts-api/build/exports.d.ts
-index e256777..b64db02 100644
+index e256777..c151c4b 100644
 --- a/node_modules/youtube-music-ts-api/build/exports.d.ts
 +++ b/node_modules/youtube-music-ts-api/build/exports.d.ts
-@@ -112,7 +112,7 @@ declare module 'youtube-music-ts-api/interfaces-primary' {
+@@ -7,7 +7,7 @@ declare module 'youtube-music-ts-api' {
+ }
+ 
+ declare module 'youtube-music-ts-api/service/youtube-music' {
+-    import { IYouTubeMusic, IYouTubeMusicAuthenticated, IYouTubeMusicGuest } from "youtube-music-ts-api/interfaces-primary";
++    import { IYouTubeMusic, IYouTubeMusicAuthenticated, IYouTubeMusicGuest, OnAuthChange } from "youtube-music-ts-api/interfaces-primary";
+     /**
+         * Defines the main YouTube Music API object. Using this object, you can either choose to make calls as a guest or an
+         * authenticated user. Not all APIs are available as a guest, so it is preferred to authenticate the user if possible.
+@@ -19,9 +19,10 @@ declare module 'youtube-music-ts-api/service/youtube-music' {
+                 * @param cookiesStr The cookie string of a valid logged in user. To obtain this cookie value, log into https://music.youtube.com as a user
+                 * and use your browser's developer tools to obtain the "cookie" value sent as a request header. Extra values in the cookie will be ignored.
+                 * @param authUser X-Goog-AuthUser header value
++                * @param onAuthChange A callback called when cookies/authuser are updated based on YTM response
+                 * @returns A promise that will yield authenticated access to the YouTube Music API.
+                 */
+-            authenticate(cookiesStr: string, authUser?: number): Promise<IYouTubeMusicAuthenticated>;
++            authenticate(cookiesStr: string, authUser?: number, onAuthChange?: OnAuthChange): Promise<IYouTubeMusicAuthenticated>;
+             /**
+                 * Provides guest access to the YouTube Music API. Only non-restrictive APIs (such as public playlists) are available to guests.
+                 *
+@@ -33,6 +34,10 @@ declare module 'youtube-music-ts-api/service/youtube-music' {
+ 
+ declare module 'youtube-music-ts-api/interfaces-primary' {
+     import { IAlbumDetail, IAlbumSummary, IArtistSummary, IPlaylistDetail, IPlaylistSummary, ITrackDetail } from "youtube-music-ts-api/interfaces-supplementary";
++    export type OnAuthChange = (cookieStr: string, authUser: number, changed: Map<string, {
++            old: string;
++            new: string;
++    }>) => void;
+     /**
+         * Defines the main YouTube Music API object. Using this object, you can either choose to make calls as a guest or an
+         * authenticated user. Not all APIs are available as a guest, so it is preferred to authenticate the user if possible.
+@@ -44,9 +49,10 @@ declare module 'youtube-music-ts-api/interfaces-primary' {
+                 * @param cookiesStr The cookie string of a valid logged in user. To obtain this cookie value, log into https://music.youtube.com as a user
+                 * and use your browser's developer tools to obtain the "cookie" value sent as a request header. Extra values in the cookie will be ignored.
+                 * @param authUser X-Goog-AuthUser header value
++                * @param onAuthChange A callback called when cookies/authuser are updated based on YTM response
+                 * @returns A promise that will yield authenticated access to the YouTube Music API.
+                 */
+-            authenticate(cookiesStr: string, authUser: number): Promise<IYouTubeMusicAuthenticated>;
++            authenticate(cookiesStr: string, authUser: number, onAuthChange?: OnAuthChange): Promise<IYouTubeMusicAuthenticated>;
+             /**
+                 * Provides guest access to the YouTube Music API. Only non-restrictive APIs (such as public playlists) are available to guests.
+                 *
+@@ -112,7 +118,7 @@ declare module 'youtube-music-ts-api/interfaces-primary' {
                  *
                  * @returns A promise that will yield a playlist with detailed information on a recently played tracks.
                  */
@@ -12,7 +56,7 @@ index e256777..b64db02 100644
                  * Moves the specified track within the playlist.
                  *
 diff --git a/node_modules/youtube-music-ts-api/build/exports.js b/node_modules/youtube-music-ts-api/build/exports.js
-index ae406e1..2a8bb14 100644
+index ae406e1..a9d5481 100644
 --- a/node_modules/youtube-music-ts-api/build/exports.js
 +++ b/node_modules/youtube-music-ts-api/build/exports.js
 @@ -1,2 +1,3 @@
@@ -20,5 +64,5 @@ index ae406e1..2a8bb14 100644
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diff --git a/src/backend/common/infrastructure/config/source/ytmusic.ts b/src/backend/common/infrastructure/config/source/ytmusic.ts
index a5b71e00..dd1af851 100644
--- a/src/backend/common/infrastructure/config/source/ytmusic.ts
+++ b/src/backend/common/infrastructure/config/source/ytmusic.ts
@@ -1,7 +1,7 @@
 import { PollingOptions } from "../common.js";
-import { CommonSourceConfig, CommonSourceData } from "./index.js";
+import { CommonSourceConfig, CommonSourceData, CommonSourceOptions } from "./index.js";
 
-export interface YTMusicData extends CommonSourceData, PollingOptions {
+export interface YTMusicCredentials {
     /**
      * The cookie retrieved from the Request Headers of music.youtube.com after logging in.
      *
@@ -17,8 +17,17 @@ export interface YTMusicData extends CommonSourceData, PollingOptions {
      * */
     authUser?: number
 }
+
+export interface YTMusicData extends YTMusicCredentials, CommonSourceData, PollingOptions {
+}
 export interface YTMusicSourceConfig extends CommonSourceConfig {
     data: YTMusicData
+    options?: CommonSourceOptions & {
+        /**
+         * When true MS will log to DEBUG what parts of the cookie are updated by YTM
+         * */
+        logAuthUpdateChanges?: boolean
+    }
 }
 
 export interface YTMusicSourceAIOConfig extends YTMusicSourceConfig {
diff --git a/src/backend/common/schema/aio-source.json b/src/backend/common/schema/aio-source.json
index 9db002d3..b5d3ae91 100644
--- a/src/backend/common/schema/aio-source.json
+++ b/src/backend/common/schema/aio-source.json
@@ -1955,7 +1955,21 @@
                     "type": "string"
                 },
                 "options": {
-                    "$ref": "#/definitions/CommonSourceOptions",
+                    "allOf": [
+                        {
+                            "$ref": "#/definitions/CommonSourceOptions"
+                        },
+                        {
+                            "properties": {
+                                "logAuthUpdateChanges": {
+                                    "description": "When true MS will log to DEBUG what parts of the cookie are updated by YTM",
+                                    "title": "logAuthUpdateChanges",
+                                    "type": "boolean"
+                                }
+                            },
+                            "type": "object"
+                        }
+                    ],
                     "title": "options"
                 },
                 "type": {
diff --git a/src/backend/common/schema/aio.json b/src/backend/common/schema/aio.json
index 33d299bf..55a4560a 100644
--- a/src/backend/common/schema/aio.json
+++ b/src/backend/common/schema/aio.json
@@ -2865,7 +2865,21 @@
                     "type": "string"
                 },
                 "options": {
-                    "$ref": "#/definitions/CommonSourceOptions",
+                    "allOf": [
+                        {
+                            "$ref": "#/definitions/CommonSourceOptions"
+                        },
+                        {
+                            "properties": {
+                                "logAuthUpdateChanges": {
+                                    "description": "When true MS will log to DEBUG what parts of the cookie are updated by YTM",
+                                    "title": "logAuthUpdateChanges",
+                                    "type": "boolean"
+                                }
+                            },
+                            "type": "object"
+                        }
+                    ],
                     "title": "options"
                 },
                 "type": {
diff --git a/src/backend/common/schema/source.json b/src/backend/common/schema/source.json
index f3f8a7e2..8d15a29c 100644
--- a/src/backend/common/schema/source.json
+++ b/src/backend/common/schema/source.json
@@ -1797,7 +1797,21 @@
                     "type": "string"
                 },
                 "options": {
-                    "$ref": "#/definitions/CommonSourceOptions",
+                    "allOf": [
+                        {
+                            "$ref": "#/definitions/CommonSourceOptions"
+                        },
+                        {
+                            "properties": {
+                                "logAuthUpdateChanges": {
+                                    "description": "When true MS will log to DEBUG what parts of the cookie are updated by YTM",
+                                    "title": "logAuthUpdateChanges",
+                                    "type": "boolean"
+                                }
+                            },
+                            "type": "object"
+                        }
+                    ],
                     "title": "options"
                 }
             },
diff --git a/src/backend/sources/YTMusicSource.ts b/src/backend/sources/YTMusicSource.ts
index f58315ee..9f8ed559 100644
--- a/src/backend/sources/YTMusicSource.ts
+++ b/src/backend/sources/YTMusicSource.ts
@@ -5,8 +5,8 @@ import { IYouTubeMusicAuthenticated } from "youtube-music-ts-api/interfaces-prim
 import { IPlaylistDetail, ITrackDetail } from "youtube-music-ts-api/interfaces-supplementary";
 import { PlayObject } from "../../core/Atomic.js";
 import { FormatPlayObjectOptions, InternalConfig } from "../common/infrastructure/Atomic.js";
-import { YTMusicSourceConfig } from "../common/infrastructure/config/source/ytmusic.js";
-import { parseDurationFromTimestamp, playObjDataMatch } from "../utils.js";
+import { YTMusicCredentials, YTMusicSourceConfig } from "../common/infrastructure/config/source/ytmusic.js";
+import { parseDurationFromTimestamp, playObjDataMatch, readJson, writeFile } from "../utils.js";
 import AbstractSource, { RecentlyPlayedOptions } from "./AbstractSource.js";
 
 export default class YTMusicSource extends AbstractSource {
@@ -18,10 +18,57 @@ export default class YTMusicSource extends AbstractSource {
 
     recentlyPlayed: PlayObject[] = [];
 
+    workingCredsPath: string;
+    currentCreds!: YTMusicCredentials;
+
     constructor(name: string, config: YTMusicSourceConfig, internal: InternalConfig, emitter: EventEmitter) {
         super('ytmusic', name, config, internal, emitter);
         this.canPoll = true;
         this.supportsUpstreamRecentlyPlayed = true;
+        this.workingCredsPath = `${this.configDir}/currentAuth-ytm-${name}.json`;
+    }
+
+    protected writeCurrentAuth = async (cookie: string, authUser: number) => {
+        await writeFile(this.workingCredsPath, JSON.stringify({
+            cookie,
+            authUser
+        }));
+    }
+
+    protected async doBuildInitData(): Promise<true | string | undefined> {
+        let creds: YTMusicCredentials;
+        try {
+            creds = await readJson(this.workingCredsPath, {throwOnNotFound: false}) as YTMusicCredentials;
+            if(creds !== undefined) {
+                this.currentCreds = creds;
+                return `Read updated credentials from file currentAuth-ytm-${this.name}.json`;
+            }
+        } catch (e) {
+            this.logger.warn('Current YTMusic credentials file exists but could not be parsed', { path: this.workingCredsPath });
+        }
+        if(creds === undefined) {
+            if(this.config.data.cookie === undefined) {
+                throw new Error('No YTM cookies were found in configuration');
+            }
+            this.currentCreds = this.config.data;
+            return 'Read initial credentials from config';
+        }
+    }
+
+    doAuthentication = async () => {
+        try {
+            await this.getRecentlyPlayed();
+            return true;
+        } catch (e) {
+            if(e.message.includes('Status code: 401')) {
+                let hint = 'Verify your cookie and authUser are correct.';
+                if(this.currentCreds.authUser === undefined) {
+                    hint = `${hint} TIP: 'authUser' is not defined your credentials. If you are using Chrome to retrieve credentials from music.youtube.com make sure the value from the 'X-Goog-AuthUser' is used as 'authUser'.`;
+                }
+                this.logger.error(`Authentication failed with the given credentials. ${hint} | Error => ${e.message}`);
+            }
+            throw e;
+        }
     }
 
     static formatPlayObj(obj: ITrackDetail, options: FormatPlayObjectOptions = {}): PlayObject {
@@ -71,6 +118,35 @@ export default class YTMusicSource extends AbstractSource {
 
     recentlyPlayedTrackIsValid = (playObj: PlayObject) => playObj.meta.newFromSource
 
+    protected onAuthUpdate = (cookieStr: string, authUser: number, updated: Map<string, {new: string, old: string}>) => {
+        const {
+            options: {
+                logAuthUpdateChanges = false
+            } = {}
+        } = this.config;
+
+        if(logAuthUpdateChanges) {
+            const parts: string[] = [];
+            if(authUser !== this.currentCreds.authUser) {
+                parts.push(`X-Goog-Authuser: ${authUser}`);
+            }
+            for(const [k,v] of updated) {
+                parts.push(`Cookie ${k}: Old => ${v.old} | New => ${v.new}`);
+            }
+            this.logger.debug(`Updated Auth -->\n${parts.join('\n')}`);
+        } else {
+            this.logger.debug(`Updated Auth`);
+        }
+
+        this.currentCreds = {
+            cookie: cookieStr,
+            authUser
+        };
+
+
+        this.writeCurrentAuth(cookieStr, authUser).then(() => {});
+    }
+
     api = async (): Promise<IYouTubeMusicAuthenticated> => {
         if(this.apiInstance !== undefined) {
             return this.apiInstance;
@@ -78,7 +154,7 @@ export default class YTMusicSource extends AbstractSource {
         // @ts-expect-error default does exist
         const ytm = new  YouTubeMusic.default() as YouTubeMusic;
         try {
-            this.apiInstance = await ytm.authenticate(this.config.data.cookie, this.config.data.authUser);
+            this.apiInstance = await ytm.authenticate(this.config.data.cookie, this.config.data.authUser, this.onAuthUpdate);
         } catch (e: any) {
             this.logger.error('Failed to authenticate', e);
             throw e;
@@ -197,22 +273,6 @@ export default class YTMusicSource extends AbstractSource {
         
     }
 
-    doAuthentication = async () => {
-        try {
-            await this.getRecentlyPlayed();
-            return true;
-        } catch (e) {
-            if(e.message.includes('Status code: 401')) {
-                let hint = 'Verify your cookie and authUser are correct.';
-                if(this.config.data.authUser === undefined) {
-                    hint = `${hint} TIP: 'authUser' is not defined your credentials. If you are using Chrome to retrieve credentials from music.youtube.com make sure the value from the 'X-Goog-AuthUser' is used as 'authUser'.`;
-                }
-                this.logger.error(`Authentication failed with the given credentials. ${hint} | Error => ${e.message}`);
-            }
-            throw e;
-        }
-    }
-
     onPollPostAuthCheck = async () => {
         if(!this.polling) {
             this.logger.verbose('Hydrating initial recently played tracks for reference.');