Notifications window opens multiple times

What went wrong?

Notifications window will open multiple times. In the attached Dashcam clip, I have tried to open it 5 times and the window opens, although there is no visual confirmation, I have to close it 5 times to close all the open windows . The notification icon should be opened only once.

Dashcam Clip

Shift - Google - Shift

Watch Shift - Google - Shift on Dashcam