[SSSD-users] ldap_id_mapping=True login linux the user UID auto change

Hi, everyone I have a problem with sssd 1.16.0 use in CentOS7 with AD(windows server 2008R2). I'm use realm join the AD，and sssd config is next: [domain/default] autofs_provider = ldap cache_credentials = True krb5_realm = ARD.INC ldap_search_base = dc=BEIJ,dc=inc id_provider = ldap auth_provider = ldap chpass_provider = ldap ldap_uri = ldap://192.168.201.207/ ldap_id_use_start_tls = False ldap_tls_cacertdir = /etc/openldap/cacerts [sssd] domains = default, ARD.inc config_file_version = 2 services = nss, pam [pam] [autofs] [domain/ARD.inc] ad_domain = ARD.inc krb5_realm = ARD.INC realmd_tags = manages-system joined-with-samba cache_credentials = True id_provider = ad krb5_store_password_if_offline = True default_shell = /bin/bash ldap_sasl_authid = YW-CLUSTER-LOGI$ ldap_id_mapping = true use_fully_qualified_names = False fallback_homedir = /home/%u access_provider = ad ldap_idmap_range_min = 5000 ldap_idmap_range_max = 7000 ldap_idmap_range_size = 10 At the beginning it's running very good. But the recent we discovery some user's UID have changed , the UID auto +10. For example, the UID initial is 5333 then user UID auto change to 5343. Why? How to solve it? Thanks.