Hello RobertJ21,my name is Luiz Cruz independent consultant and I'm here to help you;
I understand that your new tab page is not showing in Edge;
If you try to access other web pages does it work normally?
Initially I recommend that you try the following;
Make sure Edge is up to date;
Open Edge and go to Settings;
Click on About Microsoft Edge in the menu on the left of the screen;
If there is an update, it will be done;
Try resetting the Edge settings;
Open Edge and go to Settings;
Click on Reset settings in the menu on the left of the screen;
Click on Restore settings to their default values;
Click Reset;
Restart Edge and check if the home page is open;
Hope this helps, see you soon!