Keep getting blockReason: "OTHER" when using gemini-2.5-computer-use-preview-10-2025

I am trying to use models/gemini-2.5-computer-use-preview-10-2025 to automate user actions on devices in my network.

When I try to run the model on the web UI of a specific device in my local network I keep getting blocked with blockReason: “OTHER” even though I am not violating any usage policy.

Running the model with the same prompt on another type of device in my local network works ok.

Here is an example for such a blocked request:

request id is: XupCaY2WFpa0nsEPmOOvsQw

model response is:

{
  "candidates": [
    {
      "content": {}
    }
  ],
  "promptFeedback": {
    "blockReason": "OTHER"
  },
  "usageMetadata": {
    "promptTokenCount": 1860,
    "totalTokenCount": 1860,
    "promptTokensDetails": [
      {
        "modality": "TEXT",
        "tokenCount": 54
      },
      {
        "modality": "IMAGE",
        "tokenCount": 1806
      }
    ]
  },
}

Hi @Raanan, welcome to the community!

Block Reason ‘Other‘ is an umbrella classification for requests blocked by internal logic that falls outside the standard configurable safety categories. Safety Issues

Since your prompt is identical, the failure is likely triggered by the visual content of the specific web UI. The computer model uses a safety layer and scans screenshots for Sensitive Information exposure (this may be blocked if devices’ UI displays cryptographic keys, serial numbers, etc.) and also for Unsupported UI categories. Computer use Safety and Security

Please audit the Visual input and check if the blocked UI contains specific strings or elements that the other device does not.

Thank you!

this is happening on simple tasks like search best restaurants. How can we control the UI, ads etc on millions of website. This has made gemini completely use less