diff --git a/jam-ui/src/components/client/JKSessionBackingTrackPlayer.js b/jam-ui/src/components/client/JKSessionBackingTrackPlayer.js
index 8da52ff17..ddd7dc0a7 100644
--- a/jam-ui/src/components/client/JKSessionBackingTrackPlayer.js
+++ b/jam-ui/src/components/client/JKSessionBackingTrackPlayer.js
@@ -26,6 +26,10 @@ const JKSessionBackingTrackPlayer = ({
 
   // Utility function to format milliseconds to M:SS format
   const formatTime = (ms) => {
+    // Handle undefined, null, or NaN values
+    if (ms == null || isNaN(ms) || ms < 0) {
+      return '0:00';
+    }
     const seconds = Math.floor(ms / 1000);
     const minutes = Math.floor(seconds / 60);
     const remainingSeconds = seconds % 60;
@@ -42,8 +46,12 @@ const JKSessionBackingTrackPlayer = ({
       // Fetch and set duration immediately when track loads
       try {
         const durationInMs = jamClient.SessionGetTracksPlayDurationMs();
-        setDurationMs(durationInMs);
-        setDuration(formatTime(durationInMs));
+        console.log('JKSessionBackingTrackPlayer: Duration from jamClient:', durationInMs, 'Type:', typeof durationInMs);
+
+        // Ensure we have a valid number
+        const validDuration = (durationInMs != null && !isNaN(durationInMs) && durationInMs >= 0) ? durationInMs : 0;
+        setDurationMs(validDuration);
+        setDuration(formatTime(validDuration));
       } catch (error) {
         console.error('Error fetching track duration:', error);
         setDuration('0:00');
@@ -66,10 +74,16 @@ const JKSessionBackingTrackPlayer = ({
           const durationInMs = jamClient.SessionGetTracksPlayDurationMs();
           const trackIsPlaying = jamClient.isSessionTrackPlaying();
 
-          setCurrentPositionMs(positionMs);
-          setCurrentTime(formatTime(positionMs));
-          setDurationMs(durationInMs);
-          setDuration(formatTime(durationInMs));
+          console.log('JKSessionBackingTrackPlayer polling:', { positionMs, durationInMs, trackIsPlaying });
+
+          // Ensure valid numbers
+          const validPosition = (positionMs != null && !isNaN(positionMs) && positionMs >= 0) ? positionMs : 0;
+          const validDuration = (durationInMs != null && !isNaN(durationInMs) && durationInMs >= 0) ? durationInMs : 0;
+
+          setCurrentPositionMs(validPosition);
+          setCurrentTime(formatTime(validPosition));
+          setDurationMs(validDuration);
+          setDuration(formatTime(validDuration));
 
           // Sync playing state if changed
           if (trackIsPlaying !== isPlaying) {
@@ -353,7 +367,7 @@ const JKSessionBackingTrackPlayer = ({
                 onClick={handlePlay}
                 disabled={!backingTrack}
               >
-                <FontAwesomeIcon icon={isPlaying ? faPause : faPlay} />
+                <FontAwesomeIcon icon={isPlaying ? faPause : faPlay} /> Play/Pause
               </Button>
 
               <Button
@@ -361,7 +375,7 @@ const JKSessionBackingTrackPlayer = ({
                 onClick={handleStop}
                 disabled={!backingTrack}
               >
-                <FontAwesomeIcon icon={faStop} />
+                <FontAwesomeIcon icon={faStop} /> Stop
               </Button>
             </div>