When you try to open Site Contents page, a document library, a custom list or any page view that uses the modern experience it retrurns a blnk blank page. This happens after installing the July CU update to our SharePoint Farm. This bug is generated by the vendor not by an issue during the installation.
Installing the August CU update or manually installing patch KB5001974 along with the KB5001975 updates will solve the issue. We installed August 2021 CU.
