The Voice AI, when synced to a calendar, doesn't apply the Post Buffer time setting to any appointments created on a Google calendar (for example) that were created using a different method other than the Voice AI.

For example, if I have a Post Buffer Time of 15 minutes, and there's already an appointment manually created from 10:00AM - 11:00AM, the Voice AI will offer the next time of 11:00AM - 12:00PM. It does not apply the 15 minute Post Buffer Time.

However, if I use the Voice AI again, the next available time it will offer WILL include the 15 min Post Buffer Time, and it will offer 12:15PM.