Gemini users say their chat histories have quietly vanished

"Over the past few days, complaints have stacked up from people who say months of conversations with Google's AI chatbot have simply vanished, with Reg readers noting the disappearances seemed to coincide with the rollout of Gemini 3.1. These complaints are echoed on Google's support forums, where one Gemini Pro user said that all their history had gone AWOL on both phone and desktop despite autodelete being set to keep chats for up to 18 months."

"They added that prompts still show up in activity logs - suggesting the data exists somewhere, just not where they need it. Another user complained that they were missing at least 15 chats with "no evidence in the activity log of them having ever existed," saying that the episode had them ready to jump ship to a rival model after years of tolerating Google's habit of abruptly breaking or binning services."

"One forum has even tried to play unpaid support engineer, suggesting that the data may still be sitting on Google's servers and pointing to prompts visible in the Gemini activity page as evidence that the problem is more of a sync or "handshake" error than outright loss. They posted a laundry list of workarounds - from hard refreshes and forced logouts - but the replies suggest mileage varies wildly, with plenty of users saying the so-called fixes did nothing to coax their missing chats back."

Over several days, users reported months of conversations with Google's Gemini chatbot disappearing, with many noting the timing coincided with the Gemini 3.1 rollout. Some users observed prompts in activity logs while full chat threads were absent from chat history, implying data existed but was inaccessible. Reports include chats missing from Google's My Activity archive, raising concerns about permanent loss for paid users. Community-proposed workarounds (hard refreshes, forced logouts) produced inconsistent results. Google acknowledged a bug that temporarily hid chat history for a small number of users and stated that engineers are fixing the problem.

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