Event date issue

Hello, i have 2 event packages. None of them are subscriptions, just one time payments. I ve setup alive days to be 30. What i ve noticed is that when i create a new event, then i am allowed to chose any date from today and after. If the event package is set up to expire in 30 days, then i believe you should be allowed to pick dates starting from today and ending 30 days after. Right now, i can choose a date that is next year, even though the event package expires in 30 days.

Thank you on advance for your help,
Konstantinos