Global styles not present in global-error.tsx page since next 14.2.8

Link to the code that reproduces this issue

https://github.com/c-marchese/next-global-styles-in-global-error

To Reproduce

Build the application (pnpm run build)
Start the production server (pnpm run start)
Visit the page

Current vs. Expected behavior

Following the steps from the previous section, I expected to see a red background but I observed a white background. This means global.css has not been applied to the global-error.tsx page.

Provide environment information

Operating System:
  Platform: darwin
  Arch: x64
  Version: Darwin Kernel Version 22.6.0: Wed Jul  5 22:21:56 PDT 2023; root:xnu-8796.141.3~6/RELEASE_X86_64
  Available memory (MB): 16384
  Available CPU cores: 12
Binaries:
  Node: 20.9.0
  npm: 10.1.0
  Yarn: 1.22.19
  pnpm: 9.1.2
Relevant Packages:
  next: 15.0.0-canary.171 // Latest available version is detected (15.0.0-canary.171).
  eslint-config-next: N/A
  react: 19.0.0-rc-778e1ed2-20240926
  react-dom: 19.0.0-rc-778e1ed2-20240926
  typescript: 5.3.3
Next.js Config:
  output: N/A

Which area(s) are affected? (Select all that apply)

Module Resolution

Which stage(s) are affected? (Select all that apply)

next start (local)

Additional context

Until Next 14.2.7, global-error.tsx shows a red background (see https://github.com/c-marchese/next-global-styles-in-global-error/tree/next14.2.7). Starting Next 14.2.8 – and in the latest canary – it doesn't.

I believe https://github.com/vercel/next.js/pull/69507 might be related to this issue.

vercel / next.js

Global styles not present in global-error.tsx page since next 14.2.8 #70553