[Bug] Antigravity IDE Login Fails/Loops for Specific Personal Gmail Account (Other Account Works)

Google Antigravity
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Environment:

  • OS: Windows 11

  • Account Type: Personal @gmail.com

  • App Version: Latest Public Preview

Issue Description: I am completely locked out of the Antigravity IDE on my primary developer account. The authentication either fails silently or loops indefinitely. However, a secondary Google account logs into the IDE perfectly on this exact same machine and network, isolating the issue entirely to this specific account’s backend state.

Troubleshooting Steps Already Taken:

  1. Isolated the Environment: Logged in successfully with an alternate account, ruling out local OS conflicts, firewall issues, or WSA/WSL link hijacking.

  2. Verified Account Type: Confirmed the problem account is a standard @gmail.com address, not a Workspace/custom domain.

  3. Regional IP Alignment: Locked in a definitive account region via a new Google Payments profile. Because I am based in Brazil but manage a US-based Wyoming LLC and US Play Store developer accounts, I ensured my active IP strictly matched the account’s registered region during the login attempt to avoid cross-border security flags.

  4. Clean OAuth State: Cleared all cookies for accounts.google.com and executed the login via a fresh Incognito window.

  5. Nuked Local App Data: Completely deleted all local Antigravity application data and caches before retrying.

Expected Behavior: The OAuth redirect (antigravity://auth) successfully passes the token to the IDE, provisioning the account for use.

Actual Behavior: Browser authentication succeeds, but the IDE ignores the token or silently fails to provision the account.

Request: Given that all local and regional variables have been cleared, this account appears to have a corrupted OAuth token cache or is stuck in a provisioning loop on the backend. Could an engineer please review the server-side state for the account posting this?

Tagging @pradeepkuppala - could you or someone on the Antigravity team please check the backend provisioning state for this account? I am completely locked out despite all local/regional troubleshooting.

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Hello @DeltaFoxSierra, welcome to Google AI Forum!

Thank you for bringing this to our attention. We have escalated the issue to our internal teams for a thorough investigation.

To ensure our engineering team can investigate and resolve these issues effectively, we highly recommend filing bug reports directly through the Antigravity in-app feedback tool. You can do this by navigating to the top-right corner of the interface, clicking the Feedback icon, and selecting Report Issue.