diff --git a/js/src/hooks/use-stream-playback.ts b/js/src/hooks/use-stream-playback.ts
index 8ea3e85..f0b4edc 100644
--- a/js/src/hooks/use-stream-playback.ts
+++ b/js/src/hooks/use-stream-playback.ts
@@ -163,13 +163,16 @@ export function useStreamPlayback(
 
     // Try to find the marker's target particle
     const found = children.find(
-      (c) => c.created_at.getTime() === playbackPosition.getTime(),
+      (c) => c.created_at.getTime() > playbackPosition.getTime(),
     );
 
     if (found) {
       initializedForRef.current = streamParticle.id;
       dispatch({ type: "INIT", particleId: found.id });
       return;
+    } else {
+      initializedForRef.current = streamParticle.id;
+      dispatch({ type: "INIT", particleId: children[children.length - 1].id });
     }
 
     // Marker target not found yet — fall back after timeout