Some kind of unwanted caching behaviour?

[James Tindal]

GrayMatter is giving me the output for a previous input instead of the actual input.
This Codesandbox behaves normally

import GrayMatter from "gray-matter";
console.log(
  GrayMatter(
    "---\nmarkmap:\n  coloring: single\n---\n\n```markmap\n---\nmarkmap:\n  height: 249\n---\n# Housework\n## Main\n- [x] Dishes\n- [ ] Cleaning the bathroom\n- [ ] Change the light bulbs\n- [ ] something else\n## [x] Also work on titles\n```\n\nd\n"
  ).data
);

Output: { markmap: { coloring: 'single' }

However, if I copy and paste the same code into my Electron console,

So far, I can't replicate this in a simpler form.

If I change one character in the input string, it returns a normal answer.