Rocket.Chat activate "Require password change" for some user everytime


We use Rocket.Chat in combination with Keycloak as OAuth Service. The most user have no problem, but for some user, Rocket.Chat activate the “Require Password change” every time the user login. The problem is, that the user see the password change form during the login. The can write in the input what they want. It doesn’t matter. Actually the user cant change the password. Then the user access their account like expected.
At this moment, the problem is no blocker. Some user are confused, some user ignore the problem.
But is there a way to fix that. What can lead to this weird behaviour.

Server Setup Information

  • Version of Rocket.Chat Server: 2.3.1
  • Operating System: Ubuntu 16.04.6 LTS
  • Deployment Method: docker
  • Number of Running Instances: 1
  • DB Replicaset Oplog:
  • NodeJS Version: v8.15.1
  • MongoDB Version: 4.0.6
  • Proxy: traefik
  • Firewalls involved: yes