Why Communication Site Homepage Shows Blank Web Parts

You open a SharePoint Communication Site and see blank areas where images, text, or news should appear. These empty spaces are web parts that failed to load their content. The problem usually happens because of permission conflicts, browser cache, or web part configuration issues. This article explains why blank web parts appear and how to fix each cause.

Why Communication Site Web Parts Appear Blank

A Communication Site homepage is built from web parts that display dynamic content like news, documents, or images. When a web part shows a blank area, it means the part loaded but the data inside it did not render. The root cause is almost always one of the following:

The most common reason is that the site visitor does not have the correct SharePoint permissions. Communication Sites use three default permission groups: Owners, Members, and Visitors. If a user is not in the Members group, web parts that require edit-level permissions will appear blank.

A second cause is stale browser cache. SharePoint uses JavaScript and CSS files to render web parts. If the browser has cached an old version of these files, the web part may fail to load its content and show an empty box instead.

A third cause is a misconfigured web part. For example, an Image web part that references a deleted file or a News web part that pulls from a library the user cannot access will display as blank. The web part itself is functional, but its data source is broken or restricted.

Steps to Diagnose and Fix Blank Web Parts

1. Check the user’s permission level
   Go to the Communication Site. Select Settings (gear icon) then Site permissions. Under Site sharing and permissions, select Advanced permissions settings. On the ribbon, select Permission Levels. Verify that the affected user is in the Members group or has at least Contribute permission. If not, add the user to the Members group.
2. Test with a different browser or incognito mode
   Open a private browsing window (Ctrl+Shift+N in Chrome, Ctrl+Shift+P in Firefox). Navigate to the Communication Site homepage. If web parts load correctly, the issue is browser cache. Clear the cache by pressing Ctrl+Shift+Del, selecting Cached images and files, and clicking Clear.
3. Edit the page and inspect each web part
   Select Edit at the top right of the homepage. Hover over each blank web part and select the Edit web part icon (pencil). In the web part properties pane on the right, check the source. For an Image web part, confirm the image URL still exists. For a News web part, confirm the news post is published and not in draft mode. For a Document Library web part, confirm the library is not hidden or empty.
4. Republish the web part content
   If a web part pulls from a list or library, open that list or library directly. Select a file or item that should appear in the web part. Select the ellipsis (three dots) and choose Republish. This refreshes the content feed and can resolve blank web parts caused by versioning issues.
5. Reset the web part
   If the web part still shows blank, select the Edit icon on the web part. In the properties pane, scroll to the bottom and select Reset. This removes the current configuration and returns the web part to its default state. Then reconfigure the web part with a valid source.

If Communication Site Still Has Issues After the Main Fix

Blank web parts appear only for external users

External users (guests) may see blank web parts even when internal users do not. This happens because external sharing settings block certain content types. Go to SharePoint admin center > Policies > Sharing. Under External sharing, select the most permissive option that fits your organization’s policy, such as Anyone with a link. Then go to the Communication Site, select Settings > Site permissions, and ensure external users are added to the Visitors group at minimum.

Web part shows blank after moving or renaming files

If you moved or renamed a file that a web part references, the web part loses its connection and displays blank. To fix this, edit the page and open the web part properties. Update the source URL to point to the new file location. For News web parts, republish the news post from the original site pages library.

Blank web part after applying a custom theme

A custom theme can sometimes override web part styles and cause content to hide. Go to Settings > Change the look. Select a default theme like Blue or Orange. If the web part content reappears, the custom theme has a conflict. Modify the theme JSON to remove any overrides for .sp-webpart or .ms-webpartzone.

Item	Permission Issue	Cache Issue	Configuration Issue
Who sees the blank	Specific users or groups	All users on one browser	All users regardless of browser
When it occurs	After permission changes	After SharePoint updates	After content changes
Fix method	Add user to Members group	Clear browser cache	Reconfigure web part source
Persistence	Persistent until permission fixed	Fixed after cache clear	Fixed after web part edit

Blank web parts on a Communication Site homepage are usually caused by permission gaps, browser cache, or broken web part sources. By checking the user’s permission level, clearing cache, and verifying each web part’s configuration, you can restore the homepage content. For persistent issues, inspect external sharing settings and custom themes. After applying these fixes, test the homepage in a private browser window to confirm the web parts load correctly.