npm run build doesn't exit after successful completion

[bomanimc]

Hi all! I am noticing that the npm run build command doesn't always exit after successful completion of the build, which causes timeout failures while using this approach in CI. This is typically replicable locally (although it seems that it occasionally does exit) , but seems to be consistently replicable in CI.

Any insights on what way cause this issue?

Using [email protected] and [email protected]. Scripts in package.json are set up following the documentation.

 "scripts": {
    "build": "react-app-rewired build",
    "eject": "react-scripts eject",
    "start": "react-app-rewired start",
    "test": "react-app-rewired test"
  },

It seems that the builds are completing properly, but, typically, the command doesn't exit. Here's a screenshot of the terminal output:

My config override looks something like this:

...

const override = (config, env) => {
  config.watch = env !== 'production';
  config.module.rules = [
    {
      generator: {
        filename: ({ filename }) =>
          /[\\/]favicon\.ico$/.test(filename) ? "[name][ext]" : "[hash][ext]",
      },
      test: /\.(gif|ico|jpg|mp3|otf|png|svg|riv|woff2?)$/,
      type: "asset/resource",
    },
    {
      generator: {
        filename: "[path][hash][ext][query]",
      },
      include: SRC_DIR,
      test: [
        // Keep Lottie files out of JavaScript bundles.
        /[\\/]lottie[\\/](.+)\.json$/,
        /[\\/]rive[\\/](.+)\.riv$/,
        /\.(gif|jpg|mp3|otf|png|svg|woff|woff2?)$/,
      ],
      type: "asset/resource",
    },
    {
      loader: "style-loader",
      test: /\.s?css$/,
    },
    {
      loader: "css-loader",
      test: /\.css$/,
    },
    
    ...

    {
      loader: "ts-loader",
      test: /\.tsx?$/,
    },
  ];
  return config;
};

module.exports = override;

[camillalo]

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[bomanimc]

Thank you! Looking forward to your response!