Steps to reproduce

Steps:

1. Open this link to live example: (required)

The issue is also in the documentation page where I can't preview any example and also no code option available

Current behavior

It is giving error as TypeError: Cannot read properties of undefined (reading 'd')

Expected behavior

Documentation page should display the preview without throwing error

Context

No response

Your environment

  Don't forget to mention which browser you used.
  Output from `npx @mui/envinfo` goes here.

Search keywords: V0.12.0 issue, DashboardLayout TypeError