LDAP login not possible list index out of range (count user)

Hi guys, I need help with this, when I configure LDAP settings
I Put the screenshot below
I get the issue

Any suggestions, thanks in advanced

I’m receiving the same error when using the “Filter Group” property with the following value:

cn=cmk_users,ou=groups,dc=xxx,dc=xxx

This group contains two users with the attribute “memberUid”.

Without adding a “Filter Group”, users are populated without problem, I just need to filter them. (I’m not going to be able to use “memberOf”)

Thanks.