Bug type

Regression (worked before, now fails)

Summary

Vertex AI 401 UNAUTHENTICATED / CREDENTIALS_MISSING on 2026.3.13 (works on 2026.3.8)

Steps to reproduce

На 2026.3.8: google-vertex/gemini-3.1-pro-preview с GOOGLE_APPLICATION_CREDENTIALS работает.

Обновиться до 2026.3.13.

Запустить агента → LLM error 401 при первом запросе.

Expected behavior

Модель google-vertex/gemini-3.1-pro-preview должна работать через сервис‑аккаунт ADC, как на 2026.3.8.

Actual behavior

LLM error: {
"error": {
"code": 401,
"message": "API keys are not supported by this API. Expected OAuth2 access token or other authentication credentials that assert a principal.",
"status": "UNAUTHENTICATED",
"details": [...]
}
}

OpenClaw version

2026.3.13 (61d171a) — баг, 2026.3.8 (3caab92) — работает.

Operating system

Ubuntu 24.04

Install method

No response

Model

google-vertex/gemini-3.1-pro-preview

Provider / routing chain

ogle-vertex:default с auth‑профилем "mode": "api-key", "apiKey": "adc"

Config file / key location

/root/.openclaw/openclaw.json, ключ: /root/.openclaw/vertex.json

Additional provider/model setup details

No response

Logs, screenshots, and evidence

Impact and severity

No response

Additional information

No response