SharePoint / SharePoint/sp-dev-docs
Tenant Wide Extensions (SPFx) not loading in new SharePoint experience (preview)
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@Ashlesha-MSFT is already working on this.
Since Apr 1, 2026.
sharepoint-developer-support
type:bug-suspected
type:uservoice-request
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Description
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:
- Are Tenant Wide Extensions currently supported in the new SharePoint experience (preview)?
- Is there a known limitation for extensions on /sharepoint.aspx?
- Has anyone found a workaround or official guidance from Microsoft regarding this?
Any insights would be greatly appreciated 🙏
Thanks!
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