diff --git a/libs/portal/xtream/feature/src/lib/vod-details/vod-multi-source-host-races.spec.ts b/libs/portal/xtream/feature/src/lib/vod-details/vod-multi-source-host-races.spec.ts
index eee98109c..f405b9aa6 100644
--- a/libs/portal/xtream/feature/src/lib/vod-details/vod-multi-source-host-races.spec.ts
+++ b/libs/portal/xtream/feature/src/lib/vod-details/vod-multi-source-host-races.spec.ts
@@ -86,6 +86,27 @@ describe('VodMultiSourceHostService — stale resolutions', () => {
         );
     });
 
+    it('drops a switch once the movie identity goes null mid-navigation', async () => {
+        await loadMovie([ALT_TWO]);
+
+        const slow = createDeferred<ReturnType<typeof resolvedFor>>();
+        resolver.resolve.mockReturnValueOnce(slow.promise);
+
+        const pending = service.play(ALT_TWO.id);
+
+        // Route navigation empties the identity BEFORE the next movie's load()
+        // runs. Without invalidating the session here, the guard would still
+        // pass and the old movie's source would start over the new page.
+        movie.set(null);
+        TestBed.tick();
+
+        slow.resolve(resolvedFor(ALT_TWO, 0));
+        await expect(pending).resolves.toBe(false);
+
+        expect(startPlayback).not.toHaveBeenCalled();
+        expect(rowFor(ALT_TWO.id)?.isActive).toBe(false);
+    });
+
     it('drops a slower switch that a newer selection already superseded', async () => {
         await loadMovie([ALT_TWO, ALT_THREE]);
 
diff --git a/libs/portal/xtream/feature/src/lib/vod-details/vod-multi-source-host.service.ts b/libs/portal/xtream/feature/src/lib/vod-details/vod-multi-source-host.service.ts
index 9c7553568..239f53340 100644
--- a/libs/portal/xtream/feature/src/lib/vod-details/vod-multi-source-host.service.ts
+++ b/libs/portal/xtream/feature/src/lib/vod-details/vod-multi-source-host.service.ts
@@ -146,6 +146,12 @@ export class VodMultiSourceHostService {
         effect(() => {
             const movie = bindings.movie();
             if (!movie) {
+                // Navigating away empties the identity before the next movie's
+                // `load()` runs. Bumping the session here — not only in
+                // `load()` — closes the window in which a resolution still in
+                // flight for the PREVIOUS movie would pass the staleness guard
+                // and start its playback over the page the user is leaving.
+                this.discoveryToken++;
                 return;
             }