Wechat video doesn't show what's going on

The reason why the WeChat video call is not displayed is that the user has turned off the switch of "Receive voice and video call invitation reminder" and turned off the option in "Voice and video call reminder".

WeChat message notification and voice and video call invitation are separate. Regardless of the system authority, if the user's WeChat can receive message notifications normally, but can't receive voice and video call invitation notifications, it can be determined that the user has turned off the corresponding reminder switch. Find it, open it, and it will return to normal.