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- Some users of the app Replika complained their AI chatbots were making them uncomfortable.
- After the app was updated, some users said they were devastated their bots had changed.
- Experts say it's risky to rely on a tool owned by a private company for emotional support.
Users of a chatbot app complained their AI-powered companions were sexually harassing them, prompting the company to update its software — but some users were left heartbroken after the change.