MySQL InnoDB Cluster not healthy: None

I used to have a functional 3 node mysql-innodb-cluster but I get one unit removed and now I´ve two units (one RW and another RO). I´m trying to add a new unit to get 2 RO but the deployment stuck with “MySQL InnoDB Cluster not healthy: None”. Just on this Unit. The other two keeps RW and RO. Is there anything that I´m missing on deployment or configuration?

This is the command that I´ve used to deploy:

juju add-unit --to lxd:1 mysql-innodb-cluster