I found a strange issue the other day. When the Minor version number is greater than or equal to 10, Windows 10 2004 machines will not be able to install a package from a URI. UNC paths work.
Here is the full error message:
"App installation failed with error message: error 0xC00CEE23: The XML in the .appinstaller file is not valid: Line 14, Column 11, Reason: '>' expected. (0xc00cee23)"
Everything works fine when the version is 9 or less. I just created a 3.10.X.X release for my WPF application & that's when I found the bug. For the time being I just kept my Minor version 9 in the package, & increased the Build number. Not sure what's going to happen when build number reaches 10.
When I test the installer on my local network using a UNC path, everything works fine. It's only when I changed to my HTTPS URL that I receive this error.
There were similar mentions of the error in the comments for this topic.
https://techcommunity.microsoft.com/t5/msix-deployment/windows-10-2004-msix-not-updating-please-chec...
