Drupal Association members fund grants that make connections all over the world.
After some testing and reading, I came to the conclusion that when I use objectSid or objectGUID as Persistent and Unique User ID Attribute, this module can't convert it to string, even using or not using "Does PUID hold a binary value?" checkbox.
When testing ldap server configuration I get "Warning: htmlspecialchars(): Invalid multibyte sequence in argument em check_plain()", because check_plain can't convert that binary to UTF8.
When using this module to authenticate and provision drupal users, I get a fatal "PDOException: em field_sql_storage_field_storage_write()" because that binary value is trying to be commited on database.