Notifier doesn't seem to work on the ios app

I was trying to debug something by using a notifier to let me know what blocks were being called when. The notification didn't pop up on the ios app, but when I used the andriod emulator the notification did pop up so it seems that it is a problem with the ios app not being able to give a pop up.

This is the report I've seen of the notifier not working. Do you have an example app that demonstrates the issue?