Subscribed Account Stuck on Login Screen (Antigravity 2.0 / IDE / CLI) - Cross-Device Confirmed

Google Antigravity
1

Hi everyone,

I am experiencing a critical account-specific login loop with my subscribed personal Google account. Even though the web browser indicates a successful Google OAuth authentication, the Antigravity client refuses to proceed and remains completely frozen on the login screen.

Here are the definitive test results that prove this is a server-side/backend account provisioning issue, not a local client glitch:

:police_car_light: The Core Issue

  • What happens: No matter what I do, the app is completely stuck on the login screen and won’t progress to the next step.
  • Platforms Affected: Antigravity 2.0, the IDE, and the CLI are ALL broken for this specific account.
  • QR Code Auth: I tried scanning the QR code and sent the verification text via my phone, but the desktop app still showed no response.

:warning: A Complete Catch-22: Cannot Even Report the Bug In-App

  • I noticed the official recommendation is to file bug reports directly through the Antigravity in-app feedback tool (by clicking the Feedback icon in the top-right corner).
  • However, because I am permanently locked out on the initial login screen, the Feedback icon does not even exist or appear on my interface. I am completely unable to submit an in-app report, leaving this forum as my only communication channel.

:test_tube: Cross-Testing & Diagnostics Performed

To narrow this down, I performed exhaustive cross-testing:

  1. Account Isolation Test (On the Same PC):
    • Subscribed Account: :cross_mark: Stuck on the login loop.
    • Different Non-Subscribed Account : Immediate login success on Antigravity 2.0, IDE, and CLI.
  2. Device Isolation Test (On a Different PC):
    • Subscribed Account: :cross_mark: Exact same login loop occurs on a completely different computer.

:hammer_and_wrench: Workarounds Already Tried (All Failed)

I have literally tried every single fix suggested on YouTube, GitHub, and this forum:

  • Modifying main.js (adding BigInt.prototype.toJSON)
  • Completely nuking local app data (%appdata%\Antigravity and %localappdata%) followed by a clean reinstall.
  • Refreshing Google Account’s “Web & App Activity” settings.
  • Double-checking Google Account age verification (Confirmed 19+).
  • Temporarily disabling all third-party antivirus/firewalls.

:red_question_mark: Request to Community Managers / Google Engineers

Since this issue is bound strictly to my paid subscription account profile across multiple devices, and I cannot even access the in-app feedback tool, it is highly likely that my account metadata or subscription token is trapped in a bad state on the backend server.

Has anyone found a way to force-refresh a corrupted subscription profile, or can a Google Admin look into manually resetting the backend provisioning for my account?

My active subscription is currently blocked. Any help would be greatly appreciated!

2

Hi @sooyeon,

Please try the following verified steps to force-refresh your account profile:

  • Revoke the Stale OAuth Grant in Google Account Settings

  • Perform a Clean Incognito Authentication

    • Fully close Antigravity (ensure no background processes remain in Task Manager / Activity Monitor).
    • Set your default browser to open in an Incognito / Private Window (or copy the login URL when triggered).
    • Open Antigravity, click Sign in with Google, and sign in only with the subscribed account in the private window.

  • For the CLI: Use Out-of-Band Auth (--no-browser)

    • If you are using the CLI (agy), bypass the local HTTP callback listener entirely: 
      • agy auth logout

agy auth login --no-browser

      • Copy the authorization code generated in your browser and paste it directly into the terminal prompt.

Please let us know if revoking the third-party OAuth permissions in your Google Account settings allows the login flow to complete?