Maybe you accidentally turned off the function of "receiving voice and video call invitation reminder", so you can't receive it. You can receive it when you restart the machine. Let me share with you how to open it.

The software version is 8.0.28. Mobile phone model: oppoReno7.

The operation steps are as follows:

1. Open the WeChat app, click me first, and then click Settings.

2. Then click on the new message notification.

3. Then turn on the gray button to the right of "Receive voice and video call invitation reminder".

4. The green button indicates successful opening, as shown in the figure below.

Ps: At the same time, don't turn off the switches of "Receive new message notification" and "Notify display message details" to avoid missing video chat.