result cache not working

[minsu-jo]

I set configurations in my hue.ini like

  [[task_server]]
   enabled=true
   broker_url=redis://redis-headless.hue:6379/0
   result_cache='{"BACKEND": "django_redis.cache.RedisCache", "LOCATION": "redis://redis-headless.hue:6379/0", "OPTIONS": {"CLIENT_CLASS": "django_redis.client.DefaultClient"},"KEY_PREFIX": "dev_hue_queries"}'
   celery_result_backend=redis://redis-headless.hue:6379/0

so I checked the data was cached in the redis with the key "dev_hue_queries*".
But I figured out when I ran the same query in HUE UI, hue server executed it again (to my trino cluster) without using caching.
My hue version is gethue/hue:20230627-140101.