Hello @mcharnock01,
Please explain your issue, including screenshots, URLs, and any other document, so we can understand and check it better. We need to know the steps to reproduce. You can upload your files to one of the following online services:
https://postimages.org
https://loom.com
https://drive.google.com
https://wetransfer.com
https://dropbox.com
To set the primary menu from the Customizer
Please navigate to Customizer> Menus > View All Locations and set your desired menu on the “Main” menu option.
Please check this screenshot: https://i.postimg.cc/2jXFhYrH/image.png.
Important Note: If you have a custom header, then the menu should be set on the widget/block you’ve set on the custom header.
For more information about the custom header, please follow this link:
https://docs.oceanwp.org/article/355-how-to-create-a-custom-header
I hope that helps.
Please keep us posted.
Best Regards
