wixPay_onPaymentUpdate(event) not fired

I’ve followed all the steps to create payments and they worked and when tested it already succeeded to make payments. But in the back-end file “events.js” the event wixPay_onPaymentUpdate(event) not fired?
I searched a lot and found that many users have the same issue without solutions yet.
Is there any reason or I’ve missed something to handle this event?
Or this is a miss feature in Corvid?

Have you found a solution for this? Am facing the same problem