I'm trying to run the kedro viz backend in the vscode debugger. The backend process seems to exit with a non-zero code with no error message, after a delay of about a minute. Any idea what causes this? It seems this only occurs after control is passed to uvicorn but that's all I've managed to figure out.

can you please share traceback, screenshots of the error; also what version of kedro-viz; and vscode are you on?

There's no traceback. It just exits with code 247 after a short delay. I don't even need to stop at a breakpoint. It works fine when not run in a debugger. kedro 1.0.0 kedro-datasets 9.0.0 kedro-telemetry 0.6.5 kedro-viz 12.2.0 Version: 1.107.0 (Universal) Commit: 618725e67565b290ba4da6fe2d29f8fa1d4e3622 Date: 2025-12-10T074347.883Z Electron: 39.2.3 ElectronBuildId: 12895514 Chromium: 142.0.7444.175 Node.js: 22.21.1 V8: 14.2.231.21-electron.0 OS: Darwin arm64 24.6.0 My launch.json is simply:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Kedro Viz",
            "type": "debugpy",
            "request": "launch",
            "module": "kedro",
            "args": ["viz"],
            "justMyCode": false,
        }
    ]
}

Hi, i wasn't able to replicate this at my end; I tried running on this Kedro demo project and it worked fine (https://github.com/kedro-org/kedro-viz/tree/main/demo-project)