[Bug]: The langfuse trace_user_id in the virtual key is not effective.

[langgg0511]

What happened?

I have the trace_user_id information in the metadata of the virtual key, but after the request, langfuse does not have the user_id information.

key info

{
  "key": "sk-xxx",
  "info": {
    "key_name": "sk-...WOTg",
    "key_alias": "user-001",
    "soft_budget_cooldown": false,
    "spend": 0.00011085,
    "expires": "2025-04-24T02:17:26.359000+00:00",
    "models": [],
    "aliases": {},
    "config": {},
    "user_id": "bdf0e28b-97d5-4c95-866f-6f8e6f1675f9",
    "team_id": "office",
    "permissions": {},
    "max_parallel_requests": null,
    "metadata": {
      "tags": [
         "user-001"
      ],
      "cache": {
        "no-cache": true
      },
      "guardrails": [],
      "trace_user_id": "user-001",
    },
    "blocked": null,
    "tpm_limit": null,
    "rpm_limit": 20,
    "max_budget": null,
    "budget_duration": null,
    "budget_reset_at": null,
    "allowed_cache_controls": [],
    "model_spend": {},
    "model_max_budget": {},
    "budget_id": null,
    "organization_id": null,
    "created_at": "2025-02-24T10:17:36.397000+00:00",
    "created_by": null,
    "updated_at": "2025-03-27T04:24:09.487000+00:00",
    "updated_by": null,
    "litellm_budget_table": null,
    "litellm_organization_table": null
  }
}

Relevant log output

Are you a ML Ops Team?

No

What LiteLLM version are you on ?

v1.63.14

Twitter / LinkedIn details

No response