I have upgraded a working solution from .NET 8 to .NET 9 with no code changes.
If I run the solution locally the File Upload component works as expected.
I have published the app to our Production environment and the File Upload no longer works.
If you click on the 'Browse' button it no longer opens the File Dialog. It does nothing.
And if you drag a file into the drop zone it tries to open the file in a new tab.