LDAP Import users error

I configured LDAP in my project. The steps read Ldap, Import User groups went OK. The step Import Users did not. The client gives the following error message: (No stacktrace printed in the console or log) com.mendix.systemwideinterfaces.core.UserException Anyone an idea how to solve it?
1 answers

I found the problem.

The validation rule for system.user is set, and the username of the LDAP is with dot in the name ( name.surname)

So make sure the validation rule is set equal to the username validation of your LDAP.