Prerequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already report this problem, without success.

Stencil Version

v4.0.4

Current Behavior

When running npm run build, the resulting dist/esm/polyfills folder is empty every other time the command is run. This causes issues as the loader exports the index file of the polyfills folder.

Expected Behavior

The polyfills folder should contain at least an index file on every build.

System Info

System: node 18.17.0
      Platform: windows (10.0.19045)
      CPU Model: Intel(R) Core(TM) i7-10610U CPU @ 1.80GHz (8 cpus)
      Compiler: C:\Users\AHOEGE\Projects\stencil-bug-reproduction\bug-reproduction\node_modules\@stencil\core\compiler\stencil.js
      Build: 1691405536
      Stencil: 4.0.4
      TypeScript: 5.0.4
      Rollup: 2.42.3
      Parse5: 7.1.2
      Sizzle: 2.42.3
      Terser: 5.19.2

Steps to Reproduce

1. Create a new project via npm init stencil
2. Run npm i
3. Run npm build
4. Run npm build

Code Reproduction URL

https://github.com/AnnaHoege/stencil-bug-reproduction

Additional Information

No response