Tbh I dont know exactly what UI is but Im just guessing this is. ANYWAYS
This issue is caused by me pulling up the Car Manager tab (while designing a car), bringing up the pause menu and attempting to Exit to the main menu, which it does not allow me to do. Then once i immediately go back to the car designer it exits to the main menu
Video here
Next one is caused by entering the pause screen, going to settings, then hitting escape again (whilst in settings), which brings me to the pause menu once more, and then exiting to the main menu. The setting screen stays up which i assume is not what it should do.
Video Here