@gleysen Thanks for sharing the tip with us. This will help others who are experiencing the same issue on a WPML based on multilingual website.
@mikeyhoward1977 Are you using any caching mechanism on your site? If yes, can you please clear the cache of your site to check whether this resolves the issue for you?
If the issue persists after clearing the cache, can you please confirm whether the following tables exist on your database?
wp_yoast_indexable
, wp_yoast_indexable_hierarchy
, wp_yoast_migrations
, wp_yoast_primary_term
If all the database tables exist on your site and the issue persists, can you please try running the indexables analysis by using the WP-CLI commands to see whether this works for you?