Site Designs - addContentTypesFromHub prevents API from working

Target SharePoint environment

SharePoint Online

What SharePoint development model, framework, SDK or API is this about?

SharePoint CSOM

Developer environment

None

What browser(s) / client(s) have you tested

• 💥 Internet Explorer
• 💥 Microsoft Edge
• 💥 Google Chrome
• 💥 FireFox
• 💥 Safari
• mobile (iOS/iPadOS)
• mobile (Android)
• not applicable
• other (enter in the "Additional environment details" area below)

Additional environment details

The issue is persistent across both the REST endpoint, and CSOM

Describe the bug / error

When [addContentTypesFromHub] is present in a Site Script the site design will fail to run, it'll not return an error, just simply zero results.

When running the site-design via the UI it works fine, however running it via the API (REST or CSOM) it'll return no updates

This was first reported on Tech Community 1½ years ago

Steps to reproduce

1. Setup a Content Type in your contenttype-hub
2. Setup a Site Script/design

{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/site-design-script-actions.schema.json",
  "actions": [
    {
      "verb": "addContentTypesFromHub",
      "ids": [
        "0x01010093E4CD8A599EE14C833C8B64942F2F3C" //content type id
      ]
    }
  ]
}

3. Run the site design from the UI and validate that the content-type is available
4. Run the site design via code, the easiest way is using PnP.PowerShell invoke-PnPSiteDesign -Identity "Site design Id" - and observe nothing happening

Expected behavior

I would expect there to be no difference between running a site design via code or via the GUI

Right now a workaround is to add the content-type via Graph this however prevents the site-design from functioning without my code running first, which breaks with the idea of site designs unfortunately

---

NOTE This is a "reopen" of an existing issue #9415