Thank you for your reply Liew
The users use 5:00 am (like 20 posts), yesterday I saw that one of those had 5:01, the early ones had 12:00 (like 5), and a few 12:20 (3) and 12:30 (2)
I did change the cron time to every 5 minutes, it was worse, none were published.
so I return it to every minute, you know what could cause the timeout?
thank you again