Notification sound and light problem

[JVBen]

My XZs' notification behavior is quite random.  When there is notification, sound, LED light and vibration alert me in a random behavior.  Sometimes there is no sound, somtimes there is no LED light and sometimes it vibrates even though I set no vibration.

[Uliwooly]

@JVBen

try to narrow down which apps have all 3 notifications and which apps only one or two