[v6.0.0-beta.29] Glob not finding stories files

[aaronmcadam]

Describe the bug

Same thing as #10772, which was apparently fixed in beta.18. I'm using beta.29. My stories load but I'm seeing the following warning:

$ start-storybook -p 9009 -s public
info @storybook/react v6.0.0-beta.29
info 
info => Loading static files from: /Users/tester/workspace/test/public .
info => Loading presets
info => Loading presets
info => Loading config/preview file in "./.storybook".
WARN We found no files matching any of the following globs:
WARN 
WARN ../src/**/*.stories.(ts|tsx|js|jsx|mdx)
WARN 
WARN Maybe your glob was invalid?
WARN see: https://github.com/storybookjs/storybook/blob/next/MIGRATION.md#correct-globs-in-mainjs

I believe I'm using a valid glob, is there a validator I can use to make sure?

Here's my main.js file:

module.exports = {
  stories: ['../src/**/*.stories.@(ts|tsx|js|jsx|mdx)'],
  ...
}

[aaronmcadam]

My bad, VSCode hadn't saved the file properly, it was hanging on running some code actions.