diff --git a/js/src/features/playback/particle-renderer.tsx b/js/src/features/playback/particle-renderer.tsx
index 2314beb..e35925f 100644
--- a/js/src/features/playback/particle-renderer.tsx
+++ b/js/src/features/playback/particle-renderer.tsx
@@ -26,7 +26,7 @@ export function ParticleRenderer({
     if (!particle.seen && markedRef.current !== particle.id) {
       markedRef.current = particle.id;
       markParticlesSeen([particle.id]);
-      apiClient.markSeen(particle.id).catch(() => {});
+      apiClient.markSeen(particle.id);
     }
   }, [particle.id, particle.seen, markParticlesSeen]);