I am a family member of a Google AI Pro family and when I try to log in to antigravity, it opens the browser asks me to login and takes me to a page saying authentication successful. Then prompts me to Open Link with Antigravity. I do that and nothing happens inside antigravity I remain in the Sign in screen as attached. I have tried with another free account and it works normally and my brother who’s the manager also works. I have made sure that I have verified my age.
you need to sign in with phone number verified account or you should verify the account which u wanna use. if the issue still persists look out for a Google Employee.
facing the same problem, and there is no response from the google team