Lap Notification Behavior

I have a question about the behavior of lap notifications. Lap notifications have recently began working again since the last Android update. However, if a workout segment is shorter than my default lap length, I still do not get a notification. For example, if I had auto lap set to 1 mile but am doing a workout that is 2 mile warmup 8x400 meters with 440 meter recovery, 2 mile cooldown I am getting 2 notifications for the warmup and cooldown, but none for any of the 400meter steps. Previously, I would received a notification saying "Lap X" followed by the time for the 400m intervals as well. I recently upgraded from the Forerunner 945 to the Forerunner 965. Is this functionality gone from the 945 to the 965 or has this functionality been changed?  Any guidance is appreciated