Target SharePoint environment

SharePoint Online

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

💥 SharePoint Framework

Describe the bug / error

Hi everyone 👋

I'm experiencing an issue with Tenant Wide Extensions (SPFx) not loading when navigating to:

https://<tenant>.sharepoint.com/_layouts/15/sharepoint.aspx

This only happens when the new SharePoint experience (preview) (available to all customers after the SharePoint at 25 digital event, yesterday) is activated at the tenant level.

Details:

• The SPFx extension is deployed tenant-wide (via Tenant App Catalog).
• It works correctly in other sites and any modern site page.
• It does not load in the new SharePoint experience (preview) accessed via /sharepoint.aspx.
• No obvious errors appear in the console related to the extension loading lifecycle.

Questions:

1. Are Tenant Wide Extensions currently supported in the new SharePoint experience (preview)?
2. Is there a known limitation for extensions on /sharepoint.aspx?
3. Has anyone found a workaround or official guidance from Microsoft regarding this?

Any insights would be greatly appreciated 🙏
Thanks!