When pushing site live, core nav styles and scripts arent included

[Nick-B]

Check out this thread over here. There are a couple of listed workarounds you could try if this is indeed part of the same bug:

Importing a WP 6.3 exported site with block theme results in CSS problems [with solution]

Hi @designmindz - thanks for reaching out! We merged your post into this larger thread here - see above for a solve (either, adding define('WP_DEVELOPMENT_MODE', 'all'); to your wp-config.php file or by removing the transient value from the wp_options table in the database, which WordPress will then regenerate for you). My take - I feel like this is a bug in WordPress 6.3, but something we can definitely handle better, so we’re taking a look at our options.