**UiPath – Agent Failures and Model Selection Issues (October 1, 2026)** Starting around 1:30 PM UTC, both low-code and coded agents failed across all regions when using **gemini-3.1-pro-preview** and **gpt-4o-2024-05-13**, with those models also becoming unselectable during agent design. The root cause was identified as a faulty change, which was reverted within approximately 50 minutes to restore model availability. Some agents experienced intermittent failures during instance refresh, with UiPath continuing to monitor execution and design stability post-resolution.
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We have reverted the change that caused this issue and confirmed that the affected models are available again. Some agents may continue to experience intermittent failures while instances refresh. We are continuing to monitor agent design and execution for gemini-3.1-pro-preview and gpt-4o-2024-05-13.
We have identified the issue and are deploying a fix. Agents using the affected models may continue to experience failures, and the models may remain unavailable for selection during agent design, while the deployment completes.
Starting October 1 at approximately 1:30 PM UTC, some Agents, including both low-code and coded agents, began experiencing failures across all regions when using gemini-3.1-pro-preview and gpt-4o-2024-05-13. These models may also be unavailable for selection during agent design. We are actively investigating and working on a fix.
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