Busy times not being updated when event is updated

Question

When updating events through the java graph api, the original time is being returned when getting the schedule busy times rather than the updated time. For example, if I have an event originally set for 12pm today and I update it following the example here to have a time of 1pm, it does update the time in my outlook calendar to be 1pm as expected. The part that is unexpected is that when I get the schedule to find the free/busy times as explained here, the response is still including the original time of 12pm with the event instead of the updated 1pm. I'm quite certain that my patch request is correct because the event is getting updated and I also believe that my schedule request is correct as well, but I don't know how to get it to return the latest updated event times.