To fix the missing YouTube video issue:
Ensure the WordPress user has sufficient permissions (at least the Editor level).
Clear the WP Rocket plugin cache (if installed).
Go to Menu -> Blog Sync Status and click the Force Sync button. Wait 5-10 minutes for synchronization.
If the issue persists, try adding the
unfiltered_html
permission to the SEObot user: https://publishpress.com/knowledge-base/unfiltered_html/ and proceed with "Force Sync".