I cant select customers
You must type something in the Search box to get Customers to appear, otherwise the list remains empty. This is not an Issue; it has always been this way.
Show this config section for the Entity Screen and ensure you have a valid Entity Type (ie. “Cliente”) selected:
Clear/blank the State Filter and remove the Entities from the Entity List.
Check the Mappings section as well…
Maybe try logout and login
No, the list remains empty