Tier 1 Gemini API project returns 0 RPM regional quota

Hello,

My Gemini Developer API project appears to have a quota provisioning mismatch.

Project number: 4576230591..

Project: Default Gemini Project

Billing tier in AI Studio: Tier 1 · Prepay

Billing account: active, with remaining prepaid credits

AI Studio Rate Limit page shows for Gemini 3.5 Flash:

- RPM: 1K

- TPM: 2M

- non-zero RPD

However, even a minimal direct request to the standard Gemini Developer API endpoint fails:

POST https://generativelanguage.googleapis.com/v1beta/models/gemini-3.5-flash:generateContent

Response:

429 RESOURCE_EXHAUSTED

quota_metric:

generativelanguage.googleapis.com/generate_content_requests

quota_limit:

GenerateContentRequestsPerMinutePerProjectPerRegion

quota_location:

europe-west1

quota_limit_value:

0

consumer:

projects/4576230591..

This is not using Vertex AI, a regional Vertex endpoint, or custom region settings. The same error occurs outside OpenClaw with a direct HTTP request.

Could you please check why the project has a 0 RPM quota for europe-west1 while AI Studio shows Tier 1 limits of 1K RPM for Gemini 3.5 Flash?