Wont let me set an event date

It asks me to set my event date, I scroll from April to March, the app scrolls back to April. I try to change the date from April 27, the app goes back to the 27th. I dont know what kind of thing this app has for April 27 but its not the date of my race!

Genebelcher1 about MapMyRun Trainer - 5k, 10k, Marathon, Half Marathon Training Plans, v4.0.2