Verification loop in Antigravity IDE with Google AI Pro account

I am using Windows 11 and Antigravity IDE 2.1.1. My Google AI Pro subscription is active on hexagonstack404@gmail.com. AI Studio works correctly, browser authentication completes successfully, and 2-Step Verification is enabled. However, Antigravity IDE always returns to “Verify your info to continue”. A second Gmail account works on the same PC and same IDE, so the issue appears to be account-specific rather than a local installation problem.

I’ve got same issue, but no-one of the Support team to resolved this issue.
My account is t....@gmail.com.