Android Question B4A v8.00 Notification sound

[Pendrush]

notif.Initialize
notif.OnGoingEvent = True
notif.Sound = False '<- this line was ignored
notif.Light = False
notif.Vibrate = False
notif.AutoCancel = False
notif.Icon = "icona"
notif.SetInfo("Test", "Test", Main)
notif.Notify(1)
Service.StartForeground(1, notif)

This code generate sound when notification is shown from service in B4A v8.00
There is no sound, as it should, in B4A v7.80.
Line: notif.Sound = False is completely ignored on Android 8.1 device and B4A v8.00.
Manifest: targetSdkVersion="25"

How to show notification without sound?

EDIT:

notif.Initialize2(notif.IMPORTANCE_LOW)

Will make sound go off, but still is this normal behavior?

 

[Erel]

Will make sound go off, but still is this normal behavior?

Yes. On Android 8+ when targetSdkVersion is 26+ the importance level determines whether the notification will play a sound or not.