Date wont change

The date wont change off of May 24, when I try to change it to April or any other month is keeps switching back to May 24. Major bug that needs to be fixed as currently this app is unusable unless my race is on May 24 2016 which it is currently not. Big disappointment as I was really looking forward to using this. Please update ASAP.

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