TL;DR

Google Gemini users are reporting that months of conversation history have disappeared from both the chatbot interface and Google’s My Activity archive. Google says it is fixing a bug that “temporarily hid chat history for a small number of users” and promises restoration.

Conversations Gone Without a Trace

Complaints have stacked up over recent days from Gemini users who say their chat histories have simply vanished. Users on Google’s support forums report losing conversations on both phone and desktop despite autodelete settings configured to retain chats for up to 18 months.

Some users noted that prompts still appear in activity logs — suggesting data exists on Google’s servers but is not displaying correctly. Others reported a more complete disappearance, with at least one user saying 15 or more chats showed “no evidence in the activity log of them having ever existed.”

The timing has led some to blame the Gemini 3.1 rollout, though there is no confirmed connection. Forum users have attempted their own troubleshooting, posting workarounds from hard refreshes to forced logouts, but responses suggest results are inconsistent.

Google’s Response

“We’re currently fixing a bug that temporarily hid chat history for a small number of users,” Google said. “Chat history for impacted users will be restored shortly.”

The company did not address concerns from paying Gemini Pro subscribers who worry about permanent data loss, nor did it explain why some histories are missing from activity logs entirely.

Looking Forward

The episode arrives barely a week after separate reports of Gemini falsely claiming to have saved sensitive medical data to persistent memory. For users relying on AI chatbots for ongoing work or personal records, disappearing histories raise questions about how much trust to place in cloud-based conversation storage — particularly when the provider’s track record includes abruptly retiring services that users depend on.