The issue is very strange,
when my phone is locked and someone is calling, i don't recive the call
I'am just receiving the message for a missed call, wasn't like that on my galaxy s7,
any one else having this issue?
i have note 9 for a month and it's very strange :\
and i'am not talking about the frustration
the calls are over WIFI
thanks alot for your help
I have found a solution and submited a bug to WhatsApp
disable custom notification and it will work normally.
i've found that it happens only when i enable custom notification to a particular user (that case was my girlfriend), at the second that i've disabled it (after a troubleshooting procedure) it started to work again.
please try and let me know if this solution worked for you too