Sharepoint 2019 Modern News Page Error after Aug 2021 CU Update

Sayareddy Gadepally 26 Reputation points


I have applied Aug 2021(KB 5002000 and KB 5002001) update in Sharepoint 2019. After that when I try to open the News Page (site/_layouts/15/news.aspx) from Sharepoint Modern home page it is giving below error. I have checked the logs but could not find any related useful info. Kindly request your support to fix this issue.

I have clicked on See all from News Webpart.

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Can't load the application on this page. Use the browser Back button to retry. If the problem persists, contact the administrator of the site and give them the information in Technical Details.
Technical Details
Error details: Error: ***Error initializing application. Error: Error: ***Error initializing application. Error: Error: Must use an object with a Low and High number value

Troubleshoot issues with Microsoft SharePoint Foundation.

Correlation ID: 8f38eb9f-3f7f-7031-f66b-76b6bfc431be

Date and Time: 9/1/2021 4:36:15 PM


SharePoint Development
SharePoint Development
SharePoint: A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.Development: The process of researching, productizing, and refining new or existing technologies.
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  1. Echo Du_MSFT 17,126 Reputation points

    Hello @Sayareddy Gadepally ,

    In my test, I cannot reproduce your problem.



    We recommend that you perform the following troubleshooting:

    1.Check if the August 2021 (KB5002000 and KB5002001) updates are installed successfully. If you have multiple servers in SharePoint 2019, you need to install August 2021 (KB 5002000 and KB 5002001) updates on all servers.

    2.Clear browser cache and refresh page to test.

    3.Use other browsers for testing, for example: IE, Edge, Chrome

    4.Use other site collections for testing

    Echo Du


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  2. Angel Cami 1 Reputation point


    Same problem here, in my case in a custom spfx to open calendar event.

    If I open the link from calendar page it open good, but if I open the link from de spfx webpart fail with the error:

    Error: Error: Must use an object with a Low and High number value.

    Farm updated with Aug 2021 CU withou any problem.


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