diff --git a/jam-ui/src/components/client/JKSessionScreen.js b/jam-ui/src/components/client/JKSessionScreen.js
index a1d53294a..8db00b0cd 100644
--- a/jam-ui/src/components/client/JKSessionScreen.js
+++ b/jam-ui/src/components/client/JKSessionScreen.js
@@ -190,6 +190,16 @@ const JKSessionScreen = () => {
   const backingTrackData = useSelector(selectBackingTrackData);
   const showBackingTrackPlayer = Boolean(backingTrackData);
 
+  // Debug backing track display
+  useEffect(() => {
+    console.log('[SESSION_SCREEN] Backing track display check:', {
+      showBackingTrackPlayer,
+      backingTrackData,
+      'mixerHelper.backingTracks': mixerHelper.backingTracks,
+      'mixerHelper.backingTracks?.length': mixerHelper.backingTracks?.length
+    });
+  }, [showBackingTrackPlayer, backingTrackData, mixerHelper.backingTracks]);
+
   // Stable callback for backing track popup close
   const handleBackingTrackClose = useCallback(() => {
     console.log('JKSessionScreen: Backing Track Popup closing');
diff --git a/jam-ui/src/hooks/useSessionWebSocket.js b/jam-ui/src/hooks/useSessionWebSocket.js
index 49bce1d8a..34fe9daf8 100644
--- a/jam-ui/src/hooks/useSessionWebSocket.js
+++ b/jam-ui/src/hooks/useSessionWebSocket.js
@@ -120,10 +120,14 @@ export const useSessionWebSocket = (sessionId) => {
 
       // Phase 5: Mixer and Media events
       MIXER_CHANGES: (sessionMixers) => {
-        console.log('Mixer changes received:', sessionMixers);
+        console.log('[MIXER_CHANGES] Received:', sessionMixers);
         const session = sessionMixers.session;
         const mixers = sessionMixers.mixers;
 
+        console.log('[MIXER_CHANGES] Backing tracks in payload:', mixers.backingTracks);
+        console.log('[MIXER_CHANGES] Jam tracks in payload:', mixers.jamTracks);
+        console.log('[MIXER_CHANGES] Recorded tracks in payload:', mixers.recordedTracks);
+
         // Update media summary
         if (mixers.mediaSummary) {
           dispatch(updateMediaSummary(mixers.mediaSummary));