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SharePoint 2019 - File gets locked by default to author and not allowed to update or delete
We are facing an issue with Microsoft SharePoint Server 2019, short description can be found below Issue – Whenever a new file is created in SharePoint library, it gets locked by default to autho...
April 2019 CU for SharePoint Server 2019 fixes this issue.
For Details see: https://support.microsoft.com/en-us/help/4464518/description-of-the-security-update-for-sharepoint-server-2019-april-9
I had the same issue. Could not edit file properties.
Gould get around the problem by setting Office Online Server to read only.
Still search for a resolution without having to do this:
Set-OfficeWebAppsFarm-EditingEnabled:$false