I am also having the same issue with a simple test app. To test, I generated a "hello world" that displays hello world to a window in tkinter with python and nothing else. I built it with pyinstaller as a single statically linked executable and then then packaged it as an app by moving it into an hello.app/Contents/MacOS/ directory and adding some small metadata., signed it, and sent it to notarize. My notarization is still "In Progress" 24 hours later. I would also like to know if there is something going on with the apple notary tool right now.
Topic:
Code Signing
SubTopic:
Notarization
Tags: