reloading does not work with --typescript flag

[cs01]

Describe the bug

yarn start development server does not reload (hot reload nor manual reload) when running from a directory structure created with npx create-react-app react-app --typescript

Which terms did you search for in User Guide?

reload

Environment

Environment Info:

  System:
    OS: Linux 4.15 Ubuntu 18.04.3 LTS (Bionic Beaver)
    CPU: (8) x64 Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
  Binaries:
    Node: 8.10.0 - /usr/bin/node
    Yarn: 1.19.1 - /usr/bin/yarn
    npm: 3.5.2 - /usr/bin/npm
  Browsers:
    Chrome: 78.0.3904.108
    Firefox: 70.0.1
  npmPackages:
    react: ^16.12.0 => 16.12.0 
    react-dom: ^16.12.0 => 16.12.0 
    react-scripts: 3.1.0 => 3.1.0 
  npmGlobalPackages:
    create-react-app: Not Found

package.json:

{
  "name": "react-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@types/jest": "24.0.23",
    "@types/node": "12.12.14",
    "@types/react": "16.9.13",
    "@types/react-dom": "16.9.4",
    "react": "^16.12.0",
    "react-dom": "^16.12.0",
    "react-scripts": "3.2.0",
    "typescript": "3.7.2"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

Steps to reproduce

1. npx create-react-app react-app --typescript
2. cd react-app
3. yarn start
4. Modify src/App.tsx and save it
5. Note that the page at localhost:3000 does not reflect the change. Note that manually reloading the page also does not reflect the change.
6. Killing dev server and running yarn start reflects the changes.

Expected behavior

Changes would be reflected as they are without the --typescript flag.

[heyimalex]

I'm unable to repro using the steps you provided.

[cs01]

Thanks for the quick response. I just tried again and I can't reproduce anymore either, so I'll close.

I confirmed this 4 times before posting the issue, so I don't know what was going on, but it was definitely happening on my computer earlier.