Microsoft has released a cumulative update version KB5004760 that fixes PDF problems where it wouldn’t open on Internet Explorer 11 or similar apps, and would only render gray backgrounds in Acrobat.
Microsoft has released an out of band cumulative update KB5004760 for Windows 10. The new update fixes an issue with PDF files not opening on the web when using Internet Explorer 11 or similar applications that are based on the 64-bit version of WebBrowser Control.
