Displaying a different menu on current site, while I build out new site

I have tried everything to get this work with the condition in the current nav, and new nav…I have started work on new pages and a new menu etc for this site: https://prideroofing.net/

There will be a considerable number of “new” pages as I work on it, and I want to show the client these pages with the new nav and footer, however, I need the current site to display the current “old” menu…

I have set the new menu to have a condition to show on pages published after a certain date (the one I started the new pages)

However, this new menu shows on the blog index page, blog posts, and other pages such as privacy policy…

How do I fix this?

Thank you