diff --git a/js/src/forum/addTeamsSettings.js b/js/src/forum/addTeamsSettings.js
index d237ac3..e7e2c24 100644
--- a/js/src/forum/addTeamsSettings.js
+++ b/js/src/forum/addTeamsSettings.js
@@ -8,7 +8,7 @@ class TeamsSettingsBlock extends Component {
   oninit(vnode) {
     super.oninit(vnode);
 
-    // Serialisiert Saves, damit schnelle Klicks nicht zu "last write wins" führen.
+    // Serielle Saves verhindern "Überholen" bei schnellen Klicks.
     this.saveChain = Promise.resolve();
   }
 
@@ -19,15 +19,17 @@ class TeamsSettingsBlock extends Component {
 
   view() {
     const user = app.session.user;
-
-    // Sicherheitscheck: SettingsPage ist nur für eingeloggte Nutzer, aber defensiv bleibt defensiv.
     if (!user) return null;
 
     return (
       <div className="TeamsSettings Block">
         <h3>Microsoft Teams</h3>
 
-        {this.prefSwitch(user, 'sbp-jm-msteams.enabled', 'Enable Microsoft Teams notifications')}
+        {this.prefSwitch(
+          user,
+          'sbp-jm-msteams.enabled',
+          'Enable Microsoft Teams notifications'
+        )}
 
         <div className="TeamsSettings-options">
           {this.prefSwitch(
@@ -36,9 +38,17 @@ class TeamsSettingsBlock extends Component {
             'Someone replies to a discussion I am following'
           )}
 
-          {this.prefSwitch(user, 'sbp-jm-msteams.types.postMentioned', 'Someone mentions me in a post')}
+          {this.prefSwitch(
+            user,
+            'sbp-jm-msteams.types.postMentioned',
+            'Someone mentions me in a post'
+          )}
 
-          {this.prefSwitch(user, 'sbp-jm-msteams.types.userMentioned', 'Someone mentions me')}
+          {this.prefSwitch(
+            user,
+            'sbp-jm-msteams.types.userMentioned',
+            'Someone mentions me'
+          )}
         </div>
       </div>
     );
@@ -51,14 +61,22 @@ class TeamsSettingsBlock extends Component {
       <Switch
         state={!!prefs[key]}
         onchange={(value) => {
-          // Wichtig: Merge statt Partial-Objekt, damit andere Toggles nicht "verschwinden"
-          // (Front-end Model hält preferences als ein Attribut).
+          const before = user.preferences() || {};
+
+          // ✅ KORREKT: Key dynamisch setzen
           const merged = {
-            ...(user.preferences() || {}),
+            ...before,
             [key]: value,
           };
 
-          return this.queueSave(user, merged);
+          // Debug-Ausgaben (hilft beim Verifizieren)
+          console.log('[msteams prefs] key', key, 'value', value);
+          console.log('[msteams prefs] before', before);
+          console.log('[msteams prefs] merged', merged);
+
+          return this.queueSave(user, merged).then(() => {
+            console.log('[msteams prefs] after', user.preferences() || {});
+          });
         }}
       >
         {label}
@@ -71,4 +89,4 @@ export default function addTeamsSettings() {
   extend(SettingsPage.prototype, 'content', function (vnode) {
     vnode.children.push(<TeamsSettingsBlock />);
   });
-}
+}
\ No newline at end of file