Event Duration in Events + shows incorrect options

When creating reoccurring events in Events+ the Time Duration option displays a 24 hour clock picker. It is now not possible to schedule events that last anything other than full hours. Previously you had to enter the digits manually, if you wanted an event to last 1 hour 30 mins you entered 1.5. I have tried selecting 01 hour and 30 mins but it fails to read the 30 meaning my events shows up lasting an hour.
Why has this changed?