If you go to your profiles icon, then set ringtones/alerts while the vibrate profile is active, scroll to one of the alerts that you continue to get, and make sure to set the audible notification to silent, and the vibration set to on.
Use Profiles to customize your in and out of holster notifications.
Select Profile, scroll down to Advanced .... From there select your current profile or one of the optional profiles. Select the source for each notifier and the choices for vibrate and/or tone.