Alarm/snore doesn't vibrate on Garmin watch

Detailed description of the problem:
Garmin watch doesn’t vibrate for alarm or snore-detection.

Steps to reproduce:
If I disable wearable support, my alarm and vibrate for snore detection works as intended, but if I enable wearable support for my Garmin Vivoactive 3 the watch will not vibrate for either alarm or snore detection. The alarm still sounds on the phone but the phone no longer vibrates. The sleep tracking screen shows “garmin connected”. The watch appears to be running Sleep normally, showing the time and tracking, etc.

Version of Sleep as Android:
latest from play store on a Pixel 4 as of 12/4/2019.