Sometimes...I write before I solve it...
In case it happens to someone else and/or this is what I did to solve it, I don't know which point was the one that solved it, because I did several, but I think they are all important.
After reading on the forum, I edited the server's nameservers:
nano /etc/resolv.conf
By default cwp puts a search but I have seen that on the server that, depending on the server, there are one or another, I have put the following:
nameserver 1.1.1.1
nameserver 8.8.8.8
nameserver 2606:4700:4700::1111
nameserver 2001:4860:4860::8888
(The last two, only if you have IPv6)
After this I restart the server.
Also, as I remembered that the other one that worked for me, a few hours passed since the transfer from cwp to cwp on a different server, and I have also read that the ideal at that time is to set the TTL to 5 minutes, what I did in CF was , the mail, cpanel and webmail entries (also just in case the www and the domain ones) I put in 5 minutes.
I waited about 10 minutes, then went to AutoSSL and at that moment, the certificate for domain and SAN's was added without problem.
For if it helps someone.
Greetings.