Persistent HTTP 503 / MODEL_CAPACITY_EXHAUSTED in Antigravity on paid Google AI Pro account

Hello,

I’m seeing a persistent Antigravity issue on a paid Google AI Pro account and would like to know whether this is a known product or account-provisioning problem.

For about one week, almost every request fails with:
“Our servers are experiencing high traffic right now, please try again in a minute.”

This affects all agents/models I tried. Very rarely one request succeeds, then the failures return immediately.

Environment:
Antigravity 1.23.2
Windows 11

The debug info shows:
HTTP 503 Service Unavailable
MODEL_CAPACITY_EXHAUSTED

No capacity available for model gemini-3.1-pro-high on the server

My subscription also appears inconsistent because Google AI Pro (5 TB) shows renewal in 2027 but appears as Inactive.

Has anyone from Google seen this account-specific issue before? I can provide account details privately if needed.