I was about to upload an app to iTunes connect, but the application loader has been stuck at the stage of "Verifying assets with the iTunes Store" and pending for almost an hour. Network is fine and I have never seen this before.Has anybody encountered this kind of issue? what is the solution?thanks in advance.
Cancel the process and retry. If the problem persists you might want to do it via Xcode instead of ApplicationLoader. Don't forget to open an issue with Apple to let them know, after restarting AL, your Mac and reinstalling AL to make sure it can't be fixed.
Hope that helps :)