I can't see others databases created in mongodb, with userAdmin even with permission.

For example I have a database called letsintdb and when I login with userAdmin at instance Mongo, this database don't appear for me.

I tried to give access to the userAdmin but even with permission this issue occors.

If I try to create a new database, the same occors.

How I can solve this?

What is the best practice to avoid this issue?

Regards.