Error trying to publish immediately. Post status = future (Missed schedule error)

We have moved a to new server and now we can’t publish. At least, we can’t publish instantly.

Maybe can be useful: we are using Plesk & CloudFlare.

When we publish a new post, the post_status value in wp_posts table is, automatically, future instead of publish

We have already taken a look at this post with no lucky:
https://wordpress.org/support/topic/publish-immediately-missing-and-scheduled-posts-fails/

What we have already done is:

• Checked server time
• Everything OK into site health info
• Disabled all plugins & changed to default theme
• Disabled WP Cron and setted custom cron
• Installed My Missed Schedule and WP Control plugins
  (thanks to the first one, a cron event that is running each 5 minutes forces to publish missed scheduled post).
• Installed wp-cli and trying to run with wp cron event run publish_future_post --due-now with no lucky
• Checked PHP extensions according to this
• An exact backup in my localhost is working like a charm

Here are some snapshots when trying to publish a post at 12:57pm…

And here the cron thas is created just after trying to publish:

This is how post_date & post_date_gmt looks on the database:

And this is how the time looks in WP:

So, until 2 hours later, the post isn’t published…
This is being a nightmare. We can’t use, for example, the ACF plugin. We add a new field, and it doesn’t appear until 2 hours later…

Any clue?