I don't know if anyone else is experiencing this issue. My phone will not vibrate when I receive a notification. I've checked every single setting I could possibly check. Everything seems to be in order. It was working prior to the beta update.
Had this same problem...checked "vibration intensity" & the intensity for notifications was all the way down. Brought it back up & it works again. Check your vibration intensity....settings>sounds and vibration>vibration intensity