If an appointment or calendar block series start or end time is changed, this is not propagated correctly to the rest of the series when the series has a 'Repeat - Every' style of repeat.
1. Create a Calendar Block with a Start Time of 9:00 and an End Time of 10:00
2. Set the repeat to Every Mon, Wed, Fri, 10 times
3. Click OK
4. Edit the entire series, and set the Start Time to 9:30, and the End Time to 10:00
5. Click OK
The first block will have the correct times, but subsequent blocks have Start Time 9:00 and End Time 9:30.