NSM shows authentication problem after password change

When the IdM password is changed, the NSM does not initially detect it, as account management is not provided, so the message "Authentication error" appears. However, if the password is changed in the NSM, the message still appears sporadically.

https://www.helpdesk.rrze.fau.de/otrs/index.pl?Action=AgentTicketZoom&TicketID=1268061