diff --git a/backend/docker-entrypoint.sh b/backend/docker-entrypoint.sh
index bca58fb..898dac5 100644
--- a/backend/docker-entrypoint.sh
+++ b/backend/docker-entrypoint.sh
@@ -36,6 +36,17 @@ npx prisma migrate deploy
 echo "[DB] Generating Prisma client..."
 npx prisma generate
 
+# Clear Redis cache on deployment to prevent stale data (e.g., 404 images)
+echo "[REDIS] Clearing cache for fresh deployment..."
+node -e "
+const { createClient } = require('redis');
+const client = createClient({ url: process.env.REDIS_URL || 'redis://redis:6379' });
+client.connect()
+  .then(() => client.flushAll())
+  .then(() => { console.log('[REDIS] Cache cleared successfully'); return client.quit(); })
+  .catch(err => { console.warn('[REDIS] Cache clear failed (non-critical):', err.message); });
+" || echo "[REDIS] Cache clear skipped (Redis unavailable)"
+
 # Generate session secret if not provided
 if [ -z "$SESSION_SECRET" ] || [ "$SESSION_SECRET" = "changeme-generate-secure-key" ]; then
   echo "[WARN] SESSION_SECRET not set or using default. Generating random key..."
diff --git a/frontend/components/player/SeekSlider.tsx b/frontend/components/player/SeekSlider.tsx
index 636e27f..960cd84 100644
--- a/frontend/components/player/SeekSlider.tsx
+++ b/frontend/components/player/SeekSlider.tsx
@@ -247,7 +247,8 @@ export function SeekSlider({
         >
             <div
                 className={cn(
-                    "h-full rounded-full relative transition-all duration-150",
+                    "h-full rounded-full relative",
+                    !isDragging && "transition-all duration-150",
                     styles.progress
                 )}
                 style={{ width: `${displayProgress}%` }}