[Bug] Antigravity macOS: Browser auth successful, but app fails (Pro Account stuck)

Hello team,

I am experiencing an authentication loop on the Antigravity. When I try to log in, the browser successfully completes the OAuth flow and displays “You have successfully authenticated”, but the Antigravity app fails to recognize it and denies access.

Troubleshooting steps already taken:

Cleared all browser cookies and site data.

Deleted local app cache (~/.gemini/antigravity and ~/Library/Application Support/Antigravity).

Changed default browsers (Safari/Chrome).

Disabled iCloud Private Relay.

Key finding:
If I use a secondary, free Gmail account, the login works perfectly on the first try on this exact same machine. The issue is strictly tied to my primary account, which has an active Pro subscription.

It seems my account session is stuck in a loop on the backend. Could someone from the engineering team please clear my account state or investigate this server-side lock? I really need to access my Pro features.

Thank you!

Hi @arthuroiz ,

Thank you for bringing the issue to our attention. Our engineering team is currently investigating the matter, and we appreciate your patience as we work toward a resolution.

Do you have any solution for this problem?

Thank you for your attention