Birdees Birthday app's month picker not going past current month

For anyone who uses the Birthday app entitled "Birdees" at
Birdees - Birthday Reminder de Nicole Cordes
https://itunes.apple.com/mx/app/birdees-birthday-reminder/id1252413626?mt=8
Wen flicking up/down through the month's picker item within the Add a Birthday dialogue, the picker doesn't want to go upwards from the current month, or when flicking down, won't flick downwards past January, thus I'm unable to add birthdays that occur from May until December. Is this a bug? Other than that, it's an awesome app!

Forum: 

#1 Switch the year off 2018

Hi. I think your problem is you have to switch the year to lower than 2018. That's the year someone is born.

#2 And...

May to December hasn't happened yet in 2018.Therefore you can't add those dates.And yes, it's a good app.

#3 From year upwards

App Developer

Hi gerardo,
I', not sure if it's a bug but moving from adjusting the year and moving uupwards; meaning;
Year, month and date
Causes the rotor to work
Arvind