@Abhijit_Pramanik, I’m experiencing the same issue on my new company’s MacBook (despite it having worked fine on my 2 other MacBooks).
I’m suspicious if my company’s IP proxy (JumpCloud) is interfering with the Electron backend retrieval, causing a race condition error to occur during Antigravity’s startup that prevents the conversation history from loading into the UI.
This troubleshooting session with Gemini contain details, logs, screenshots, etc.: https://gemini.google.com/share/31e86802665a
