Won't cache anymore

I set up a couple sites on a shared host. eg test.site.com
Everything was done, WP Super Cache was fine.

I pointed domain real.site.com to the same folder and updated the DB and changed all references.
Everything on the site is fine.
WP Super Cache will no longer preload

So what can break it due to changing the blog domain?
I’ve tried deleting the plugin and installing again.

log seems fine

11:29:24 /wp-admin/options-general.php?page=wpsupercache&tab=debug wp_cache_get_cookies_values: /^wp-postpass|^comment_author_|^wordpress_logged_in_/ Cookie detected: comment_author_email_627ab0a8de6fe9914c38b90c110be52e
11:29:24 /wp-admin/options-general.php?page=wpsupercache&tab=debug wp_cache_get_cookies_values: /^wp-postpass|^comment_author_|^wordpress_logged_in_/ Cookie detected: wordpress_logged_in_627ab0a8de6fe9914c38b90c110be52e
11:29:24 /wp-admin/options-general.php?page=wpsupercache&tab=debug supercache dir: /home/valentla/public_html/valentlau.com/wp-content/cache/supercache/valentlau.com/wp-admin/options-general.php/
11:29:24 /wp-admin/options-general.php?page=wpsupercache&tab=debug No wp-cache file exists. Must generate a new one.
11:29:25 /wp-admin/options-general.php?page=wpsupercache&tab=debug wp_cache_get_cookies_values: /^wp-postpass|^comment_author_|^wordpress_logged_in_627ab0a8de6fe9914c38b90c110be52e/ Cookie detected: comment_author_627ab0a8de6fe9914c38b90c110be52e
11:29:25 /wp-admin/options-general.php?page=wpsupercache&tab=debug wp_cache_get_cookies_values: /^wp-postpass|^comment_author_|^wordpress_logged_in_627ab0a8de6fe9914c38b90c110be52e/ Cookie detected: comment_author_email_627ab0a8de6fe9914c38b90c110be52e
11:29:25 /wp-admin/options-general.php?page=wpsupercache&tab=debug wp_cache_get_cookies_values: /^wp-postpass|^comment_author_|^wordpress_logged_in_627ab0a8de6fe9914c38b90c110be52e/ Cookie detected: wordpress_logged_in_627ab0a8de6fe9914c38b90c110be52e
11:29:25 /wp-admin/options-general.php?page=wpsupercache&tab=debug In WP Cache Phase 2
11:29:25 /wp-admin/options-general.php?page=wpsupercache&tab=debug Setting up WordPress actions
11:29:25 /wp-admin/options-general.php?page=wpsupercache&tab=debug Not caching wp-admin requests.
11:29:28 /wp-admin/options-general.php?page=wpsupercache&tab=debug maybe_stop_gc: GC flag not found. GC will go ahead..
11:29:29 /wp-admin/admin-ajax.php wp_cache_get_cookies_values: /^wp-postpass|^comment_author_|^wordpress_logged_in_627ab0a8de6fe9914c38b90c110be52e/ Cookie detected: comment_author_627ab0a8de6fe9914c38b90c110be52e
11:29:29 /wp-admin/admin-ajax.php wp_cache_get_cookies_values: /^wp-postpass|^comment_author_|^wordpress_logged_in_627ab0a8de6fe9914c38b90c110be52e/ Cookie detected: comment_author_email_627ab0a8de6fe9914c38b90c110be52e
11:29:29 /wp-admin/admin-ajax.php wp_cache_get_cookies_values: /^wp-postpass|^comment_author_|^wordpress_logged_in_627ab0a8de6fe9914c38b90c110be52e/ Cookie detected: wordpress_logged_in_627ab0a8de6fe9914c38b90c110be52e
11:29:29 /wp-admin/admin-ajax.php In WP Cache Phase 2
11:29:29 /wp-admin/admin-ajax.php Setting up WordPress actions
11:29:29 /wp-admin/admin-ajax.php Not caching wp-admin requests.

https://www.ads-software.com/plugins/wp-super-cache/