Donated INReservation shows as all-day event in Calendar

I've created an INLodgingReservation and donated the intent to Siri. The suggested event is visible in the Calendar inbox, but when I add the suggested event to my calendar it appears as an all-day event despite having the correct check in/check out times showing up in the Notes section of the Event. Can anyone point me to what I might be missing?
Donated INReservation shows as all-day event in Calendar
 
 
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