Mattermost 4.4.1 loses session and users disappear

Troubleshooting
11

Hi, here’s our LDAP setup with sensitive bits redacted:

"LdapSettings": {
    "Enable": true,
    "EnableSync": true,
    "LdapServer": "Server_IP",
    "LdapPort": 636,
    "ConnectionSecurity": "TLS",
    "BaseDN": "Base_DN",
    "BindUsername": "Bind_User",
    "BindPassword": "Bind_Password",
    "UserFilter": "",
    "FirstNameAttribute": "givenName",
    "LastNameAttribute": "sn",
    "EmailAttribute": "mail",
    "UsernameAttribute": "uid",
    "NicknameAttribute": "",
    "IdAttribute": "uid",
    "PositionAttribute": "",
    "SyncIntervalMinutes": 20160,
    "SkipCertificateVerification": true,
    "QueryTimeout": 60,
    "MaxPageSize": 0,
    "LoginFieldName": ""
}

NB - SyncInterval is usually 60 minutes but I’ve increased it for the moment to avoid the sync causing the logout problem

Server 2012 R2
No further LDAP messages in the logs
No limit on the number of LDAP users returned that I’m aware of. We’re talking <100 users here, so I can’t imagine it’s set lower than that if there is a limit
I’ll try the ldapsearch and PM across
E10, so no SAML