I'm using latest Power PAges Management App.
When I go to Web Files, I can't see Notes section available. Please check below screenshot.

Is "Notes" section replaced by File Content?
I also tried to Upload a file using this control. However, I'm unable to upload any file there.
When I upload the file, it's refresh the page. There's no error message or no success message. Don't know how to upload file there?
Thanks