The problem with missing dates is now resolved in the latest update, and it’s on the App Store now.
I understand that many people in non-European time zones have experienced this, even for some months. I’m very grateful to the people who sent screenshots and reports to make me aware of it (see contact-info on App Store, on the Facebook page and Twitter).
I hope this will be a new fresh start for many users, and will focus on taking the app further in the months to come, as time and resources permits.
Thanks for using this app!