I have two Docker containers set up, one running Passbolt and the other running MariaDB. Both seem to be functioning correctly on the surface. I have registered more than 100 users, but when I try to add them to a group, it’s as if the information is inaccessible, even though it exists in the database.
Hello @carlos , welcome to our community 
You’ve added all of the users, but have they complete the account configuration yet? Indeed, if the account configuration is not complete, in the database you’ll see active=0 and you won’t be able to be in a group, however when an account configuration is complete it will update the column to 1 and you’d be able to add them in a group.